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The total number of matches is 26679

Acar, Gray 1857 [Arcidae]
Acari, subclass, Leach 1817 [Arachnida]
Acariformes, superorder, Zakhvatkin 1952 [Arachnida]
Acariformes, order (Zakhvatkin 1952) [Arachnida]
Acarina, subclass (Leach 1817) [Arachnida]
Accipiter madagascariensis, Verreaux 1833 [unclassified species]
Acer, C. Linnaeus 1753 [Aceraceae]
Acrocodia indica (Desmarest 1819) [Tapiridae]
Aepophilidae, family, Puton 1879 [Hemiptera]
Aerodramus salangana (Streubel 1848) [unclassified species]
Aestrelata magentae, Giglioli and Salvadori 1869 [unclassified species]
Agraylea (Nanoagraylea), Botosaneanu 1995 [Hydroptilidae]
Agraylea (Nanoagraylea) cretaria, Botosaneanu 1995 [Hydroptilidae]
Aix galericulata (Linnaeus 1758) [unclassified species]
Alauda pratensis, Linnaeus 1758 [unclassified species]
Alces, Gray 1821 [Cervidae]
Alces alces (Linnaeus 1758) [Cervidae]
Alectroenas nitidissima (Scopoli 1786) [unclassified species]
Alectroenas nitidissimus (Scopoli 1786) [unclassified species]
Alopecoenas rubescens (Vieillot 1818) [unclassified species]
Alopochen mauritianus (Newton and Gadow 1893) [unclassified species]
Alopochen sirabensis (Andrews 1897) [unclassified species]
Alouatta palliata (Gray 1848) [Atelidae]
Alytes, Wagler 1829 [Discoglossidae]
Alytidae, family, Fitzinger 1843 [Anura]
Amblyrhynchus, Bell 1825 [unclassified genus]
Amblystoma, Tschudi 1838 [Ambystomatidae]
Amblystomidae, family (Hallowell 1856) [unclassified family]
Ambystoma (Tschudi 1838) [unclassified genus]
Ambystomatidae, family, Hallowell 1856 [Urodela]
Ambystomidae, family (Hallowell 1856) [unclassified family]
Amerogenia, Sinitshenkova 2000 [Heptageniidae]
Amerogenia macrops, Sinitshenkova 2000 [Heptageniidae]
Anabrus, Haldeman 1852 [Tettigoniidae]
Anas angustirostris, Ménétriés 1832 [unclassified species]
Anas dominica, Linnaeus 1766 [unclassified species]
Anas fulvigula (Ridgway 1874) [unclassified species]
Anas galericulata, Linnaeus 1758 [unclassified species]
Anas lobata, Shaw 1796 [unclassified species]
Anas melleri, Sclater 1865 [unclassified species]
Anas moschata, Linnaeus 1758 [unclassified species]
Anas obscura fulvigula, Ridgway 1874 [unclassified subspecies]
Anas olor, Gmelin 1789 [unclassified species]
Anas platyrhynchos, Linnaeus 1758 [Anatidae]
Anas semipalmata, Latham 1798 [unclassified species]
Anas theodori, Newton and Gadow 1893 [unclassified species]
Anelytropis, Cope 1885 [unclassified genus]
Anelytropis papillosus, Cope 1885 [unclassified species]
Anisonyx rufa, Rafinesque 1817 [Aplodontidae]
Anolis alutaceus, Cope 1862 [unclassified species]
Anolis meridionalis, Boetteger 1885 [unclassified species]
Anourosorex, Milne-Edwards 1872 [Soricidae]
Anseranas, Lesson 1828 [Anseranatidae]
Anseranas semipalmata (Latham 1798) [unclassified species]
Anthidium, Fabricius 1805 [Megachilidae]
Anthocoridae, family, Amyot and Audinet-Serville 1843 [Hemiptera]
Anthus pratensis (Linnaeus 1758) [unclassified species]
Antilope (Dama) mhorr, Bennett 1833 [Bovidae]
Antilope fulvorufula, Afzelius 1815 [Bovidae]
Antilope maxwelli, H. Smith 1827 [Guevei]
Antilope mhorr (Bennett 1833) [Bovidae]
Aplodontia, Richardson 1829 [Aplodontidae]
Aplodontia rufa (Rafinesque 1817) [Aplodontidae]
Aplodontidae, family, Brandt 1855 [Rodentia]
Aplonis opaca (Kittlitz 1833) [unclassified species]
Ara militaris (Linnaeus 1766) [unclassified species]
Arbutus, C. Linnaeus 1753 [Ericaceae]
Arca (Acar) (Gray 1857) [Arcidae]
Archaeolemuridae, family, G. Grandidier 1905 [Primates]
Arvicola mexicana, Saussure 1861 [Arvicolinae]
Arvicola montana, Peale 1848 [Arvicolinae]
Asio madagascariensis (Smith 1834) [unclassified species]
Ateles geoffroyi vellerosus (Gray 1866) [Atelidae]
Ateles vellerosus, Gray 1866 [Atelidae]
Athylax (F. Cuvier 1826) [Herpestidae]
Athylax paludinosus (Cuvier 1829) [Herpestidae]
Atilax, F. Cuvier 1826 [Herpestidae]
Atilax paludinosus (Cuvier 1829) [Herpestidae]
Balaenoptera acutorostrata, Lacépčde 1804 [Balaenopteridae]
Bathyergidae, family, Waterhouse 1841 [Rodentia]
Bibionidae, family, Newman 1834 [Diptera]
Biziura lobata (Shaw 1796) [unclassified species]
Blanus cinereus, Vandelli 1797 [unclassified species]
Blarina mexicana, Coues 1877 [Soricidae]
Blastoceras (Wagner 1844) [Cervidae]
Blastoceros (Wagner 1844) [Cervidae]
Blastocerus, Wagner 1844 [Cervidae]
Borephemera, Sinitshenkova 2000 [Australiphemeridae]
Borephemera goldmani, Sinitshenkova 2000 [Australiphemeridae]
Bos moschatus, Zimmermann 1780 [Bovidae]
Brachyophidium, Wall 1921 [unclassified genus]
Burramys parvus, Broom 1896 [Burramyidae]
Buteo brachypterus, Hartlaub 1860 [unclassified species]
Butorides mauritianus, Newton and Gadow 1893 [unclassified species]
Cairina moschata (Linnaeus 1758) [unclassified species]
Callichirus, W. Stimpson 1866 [Callianassidae]
Calyptommatus, Rodrigues 1991 [unclassified genus]
Camarhynchus pauper, Ridgway 1890 [unclassified species]
Canis brachyurus, Illiger 1815 [Canidae]
Carbo purpurascens, von Brandt 1837 [unclassified species]
Carcharias megalodon, Agassiz 1843 [Otodontidae]
Carcharocles megalodon (Agassiz 1843) [Otodontidae]
Carcharodon megalodon (Agassiz 1843) [Otodontidae]
Castor zibethicus, Linnaeus 1766 [Arvicolinae]
Cavia tschudii, Fitzinger 1867 [Caviidae]
Centrornis majori, Andrews 1897 [unclassified species]
Ceratoscopelus maderensis (Lowe 1839) [Myctophidae]
Cercopithecidae, family, Gray 1821 [Primates]
Cercopithecus cephus (Linnaeus 1758) [Cercopithecidae]
Cervulus, de Blainville 1816 [Cervidae]
Cervus alces, Linnaeus 1758 [Cervidae]
Cervus hemionus, Rafinesque 1817 [Cervidae]
Chalarodon madagascariensis, Peters 1854 [unclassified species]
Chamaelinorops, Schmidt 1919 [unclassified genus]
Chamaelinorops barbouri, Schmidt 1919 [unclassified species]
Charadrius montanus, Townsend 1837 [unclassified species]
Chelodina mccordi, Rhodin 1994 [unclassified species]
Chelus fimbriata, Schneider 1783 [unclassified species]
Chenalopex sirabensis, Andrews 1897 [unclassified species]
Chiton magdalenensis, Hinds 1845 [Ischnochitonidae]
Chrysochroa, Dejean 1833 [Buprestidae]
Chrysocyon, C. Hamilton-Smith 1839 [Canidae]
Chrysocyon brachyurus (Illiger 1815) [Canidae]
Ciccaba virgata (Cassin 1849) [unclassified species]
Ciidae, family, Leach 1819 [Coleoptera]
Cinnyris rubrater, Lesson 1827 [unclassified species]
Cinosternidae, family (Hay 1892) [unclassified family]
Cinosternum (von Spix 1824) [unclassified genus]
Clambidae, family, Fischer 1821 [Coleoptera]
Coccyzus minor (Gmelin 1788) [unclassified species]
Coelogenys taczanowskii, Stolzmann 1885 [Cuniculidae]
Coliiformes, order, Murie 1872 [Aves]
Colius, Brisson 1760 [Coliidae]
Collocalia salangana (Streubel 1848) [unclassified species]
Colobus guereza, Rüppell 1835 [Cercopithecidae]
Coluber monspessulanus, Hermann 1804 [Colubridae]
Columba australis, Linnaeus 1771 [unclassified species]
Columba macroura, Linnaeus 1758 [Columbidae]
Columba nitidissima, Scopoli 1786 [unclassified species]
Columba oceanica, Desmarest 1826 [unclassified species]
Columba picturata, Temminck 1813 [unclassified species]
Columba roseicapilla, Lesson 1831 [unclassified species]
Columba rubescens, Vieillot 1818 [unclassified species]
Columba thiriouxi, Hume 2011 [unclassified species]
Columba vitiensis, Quoy and Gaimard 1830 [unclassified species]
Comocladia, Browne 1756 [Anacardiaceae]
Coracina typica (Hartlaub 1865) [unclassified species]
Corvus cyanoleucus, Latham 1801 [unclassified species]
Corylophidae, family, Le Conte 1852 [Coleoptera]
Crabronina, subtribe, Latreille 1802 [Crabronidae]
Cratogeomys merriami (Thomas 1893) [Geomyidae]
Cretomitarcys, Sinitshenkova 2000 [Cretomitarcyidae]
Crocodilus moreletii, Dumeril and Bibron 1851 [Crocodylidae]
Crocodilus palustris, R.-P. Lesson 1831 [Crocodylidae]
Crocodylus moreletii (Dumeril and Bibron 1851) [Crocodylidae]
Crocodylus moreletti (Dumeril and Bibron 1851) [Crocodylidae]
Crocodylus palustris (R.-P. Lesson 1831) [Crocodylidae]
Crotaphytus bicinctores, Smith and Tanner 1972 [unclassified species]
Cryptopsar ischyrhynchus, Hume 2014 [unclassified species]
Cryptotis mexicana (Coues 1877) [Soricidae]
Ctenomys magellanicus, Bennett 1836 [Ctenomyidae]
Ctenosaura pectinata, Wiegmann 1834 [unclassified species]
Cuculus minor, Gmelin 1788 [unclassified species]
Culicidae, family, Meigen 1818 [Diptera]
Cuniculus taczanowskii (Stolzmann 1885) [Cuniculidae]
Cuora mccordi, Ernst 1988 [unclassified species]
Cyanoramphus novaezelandiae erythrotis (Wagler 1832) [unclassified subspecies]
Cygnus olor (Gmelin 1789) [unclassified species]
Cynomys mexicanus, C. Merriam 1892 [Sciuridae]
Cyrtonyx montezumae (Vigors 1830) [unclassified species]
Dama hemionus (Rafinesque 1817) [Cervidae]
Dasycercus, Peters 1875 [Dasyuridae]
Dermatemys, Gray 1847 [Dermatemydidae]
Dermatemys mawii, Gray 1847 [Dermatemydidae]
Dicaeum chloronothos, Vieillot 1817 [unclassified species]
Diplopoda, subclass, Gervais 1844 [Myriapoda]
Diplopoda, order (Gervais 1844) [Myriapoda]
Diplopoda, class (Gervais 1844) [Myriapoda]
Dipodomys merriami, Mearns 1890 [Heteromyidae]
Dipus hudsonius, Zimmermann 1780 [Zapodidae]
Dixidae, family, Van der Wulp 1877 [Diptera]
Dogania subplana, Geoffrey Saint-Hilaire 1809 [unclassified species]
Dolichotinae, subfamily [Caviidae]
Dolichotis, Desmarest 1820 [Caviidae]
Dromiciops gliroides, O. Thomas 1894 [Microbiotheriidae]
Ducula galeata (Bonaparte 1855) [unclassified species]
Ducula oceanica (Desmarest 1826) [unclassified species]
Echinosorex, de Blainville 1838 [Erinaceidae]
Echinosorex gymnurus (Raffles 1821) [Erinaceidae]
Ellobius, G. Fischer 1814 [Cricetidae]
Emberiza rubra, Gmelin 1789 [unclassified species]
Emydura macquariae (Gray 1831) [Chelidae]
Ephemerida, order, Latreille 1810 [Insecta]
Ephemerida (Latreille 1810) [Insecta]
Ephemeroptera, order, Hyatt and Arms 1890 [Insecta]
Equus (Hippotigris) zebra (Linnaeus 1758) [Equidae]
Equus zebra, Linnaeus 1758 [Equidae]
Eremopterix hova (Hartlaub 1860) [unclassified species]
Eulemur mongoz (Linnaeus 1766) [Lemuridae]
Eumastacidae, family, Burr 1889 [Orthoptera]
Eumops, Miller 1906 [Molossidae]
Eupoda montana (Townsend 1837) [unclassified species]
Euryapteryx geranoides (Owen 1848) [Dinornithidae]
Falco columbarius, Linnaeus 1758 [unclassified species]
Falco misisippiensis, Wilson 1811 [unclassified species]
Falco newtoni (Gurney 1863) [unclassified species]
Falco punctatus, Temminck 1821 [unclassified species]
Falsilunatia, Powell 1951 [Naticidae]
Felis marmorata, Martin 1837 [Felidae]
Felis wiedii, Schinz 1821 [Felidae]
Feylinia polylepis, Bocage 1887 [unclassified species]
Fiber zibethicus (Linnaeus 1766) [Arvicolinae]
Fossa, Gray 1864 [Viverridae]
Fossa fossana (Muller 1776) [Viverridae]
Foudia rubra (Gmelin 1789) [unclassified species]
Fregata magnificens, Mathews 1914 [unclassified species]
Fulica newtoni (Milne-Edwards 1867) [unclassified species]
Fulica newtonii, Milne-Edwards 1867 [unclassified species]
Galago moholi, A. Smith 1836 [Galagidae]
Galago senegalensis moholi (A. Smith 1836) [Galagidae]
Gallicolumba rubescens (Vieillot 1818) [unclassified species]
Gallinago magellanica (King 1828) [unclassified species]
Gallinago paraguaiae magellanica (King 1828) [unclassified subspecies]
Gallinula, Brisson 1760 [Ralliformes]
Gallirallus macquariensis (Hutton 1879) [unclassified species]
Gallirallus philippensis macquariensis (Hutton 1879) [unclassified subspecies]
Gallirallus ripleyi, Steadman 1987 [unclassified species]
Gazella (Nanger) dama mhorr (Bennett 1833) [Bovidae]
Gazella dama mhorr (Bennett 1833) [Bovidae]
Gazella mhorr (Bennett 1833) [Bovidae]
Geomys merriami, Thomas 1893 [Geomyidae]
Geospiza fortis, Gould 1837 [unclassified species]
Geospiza pauper (Ridgway 1890) [unclassified species]
Gerbillus unguiculatus, Milne-Edwards 1867 [Muridae]
Glossopsitta concinna (Shaw 1791) [unclassified species]
Gopherus agassizi (Cooper 1863) [Testudinidae]
Gopherus agassizii, Cooper 1863 [Testudinidae]
Gorilla beringei, P. Matschie 1903 [Hominidae]
Gorilla gorilla beringei (P. Matschie 1903) [Hominidae]
Grallina cyanoleuca (Latham 1801) [unclassified species]
Grammatophora muricata diemensis, Gray 1841 [Agamidae]
Graptemys, Agassiz 1857 [Emydidae]
Graptemys kohni (G. Baur 1890) [Emydidae]
Gryllotalpidae, family, Leach 1815 [Orthoptera]
Guevei maxwelli (H. Smith 1827) [Guevei]
Gulo larvatus, H. Smith 1827 [Viverridae]
Halcyon godeffroyi, Finsch 1877 [unclassified species]
Halcyon mangaia, Holyoak 1975 [unclassified species]
Halcyon ruficollaris, Holyoak 1974 [unclassified species]
Hapalomys, Blyth 1859 [Muridae]
Haplorhini (Pocock 1918) [Primates]
Haplorhini, suborder (Pocock 1918) [Primates]
Haplorhini, infraorder (Pocock 1918) [Primates]
Haplorini, suborder (Pocock 1918) [Primates]
Haplorrhini, suborder, Pocock 1918 [Primates]
Haplorrhini (Pocock 1918) [Primates]
Hebeinella (Zhang 1980) [Stenothecoida]
Helarctos, Horsfield 1826 [Ursidae]
Heliopais personata (Gray 1849) [unclassified species]
Heliopais personatus (Gray 1849) [unclassified species]
Hemiprocne salangana, Streubel 1848 [unclassified species]
Herpestes paludinosus, Cuvier 1829 [Herpestidae]
Herpestidae, family (Bonaparte 1845) [Carnivora]
Herpestinae, subfamily, Bonaparte 1845 [Carnivora]
Heteromys irroratus, Gray 1868 [Heteromyidae]
Hippotigris zebra (Linnaeus 1758) [Equidae]
Hirundo borbonica, Gmelin 1789 [unclassified species]
Holochilus, Brandt 1835 [Cricetidae]
Homonota, Gray 1845 [unclassified genus]
Hubeinella, Zhang 1980 [Mollusca]
Hydraenidae, family, Mulsant 1844 [Coleoptera]
Hydraspis macquarii, Gray 1831 [Chelidae]
Hydrometridae, family, Billberg 1820 [Hemiptera]
Hydroptilidae, family, Stephens 1835 [Trichoptera]
Hylactes megapodius (Kittlitz 1830) [Rhinocryptidae]
Hylobates entelloides, I. Geoffroy 1842 [Hylobatidae]
Hylobates lar entelloides (I. Geoffroy 1842) [Hylobatidae]
Hylobates lar lar, Linnaeus 1771 [Hylobatidae]
Hypogeomys, A. Grandidier 1869 [Nesomyidae]
Hypsipetes madagascariensis (Statius Muller 1776) [unclassified species]
Hypsipetes olivaceus, Jardine and Selby 1837 [unclassified species]
Hypsiprymnodon, Ramsay 1876 [Diprotodontia]
Hypsiprymnodon moschatus, Ramsay 1876 [Diprotodontia]
Icterus oberi, Lawrence 1880 [unclassified species]
Ictinia misisippiensis (Wilson 1811) [unclassified species]
Ictinia mississippiensis (Wilson 1811) [unclassified species]
Isuridae, family, Gray 1851 [Odontaspidida]
Isurus, Agassiz 1843 [Lamnidae]
Ithonidae, family, Newman 1853 [Neuroptera]
Kinosternidae, superfamily (Hay 1892) [Testudines]
Kinosternoidea, superfamily, Hay 1892 [Testudines]
Kinosternoidea (Hay 1892) [unclassified]
Kinosternoidea, family (Hay 1892) [unclassified family]
Kinosternon, von Spix 1824 [Testudines]
Kinosternon integrum, Le Conte 1854 [unclassified species]
Lagenorhynchus (Electra) electra (Gray 1846) [Delphinidae]
Lagenorhynchus electra, Gray 1846 [Delphinidae]
Lalage typica (Hartlaub 1865) [unclassified species]
Lamna, Cuvier 1816 [Lamnidae]
Lamnidae, family, Müller and Henle 1838 [Lamniformes]
Lamniformes, order, Berg 1958 [Chondrichthyes]
Lamniformes, suborder (Berg 1958) [Chondrichthyes]
Lampropeltis triangulum, Lacépčde 1788 [Colubridae]
Lamprothornis opaca, Kittlitz 1833 [unclassified species]
Larus canus, Linnaeus 1758 [unclassified species]
Lathridiidae, family (Erichson 1842) [Coleoptera]
Latridiidae, family, Erichson 1842 [Coleoptera]
Leioheterodon, Boulenger 1893 [Colubridae]
Lemur mayottensis, Schlegel 1866 [Lemuridae]
Lemur mongoz, Linnaeus 1766 [Lemuridae]
Leopardus wiedii (Schinz 1821) [Felidae]
Lepidoptera, order, Linnaeus 1758 [Insecta]
Leptonyx monachus (Hermann 1779) [Phocidae]
Lepus cunicularius, Waterhouse 1848 [Leporidae]
Lepus nuttalli, Bachman 1837 [Leporidae]
Lepus palustris, Bachman 1837 [Leporidae]
Lepus timidus, Linnaeus 1758 [Leporidae]
Leucocarbo purpurascens (von Brandt 1837) [unclassified species]
Limnebiidae, family [Hydraenidae]
Limnebiini, tribe () [Hydraenidae]
Limnichidae, family, Erichson 1846 [Coleoptera]
Limnolagus palustris (Bachman 1837) [Leporidae]
Limosa fedoa (Linnaeus 1758) [unclassified species]
Linyphiidae, family, Blackwall 1859 [Araneae]
Liolaemus archeforus, Donoso-Barros and Cei 1971 [unclassified species]
Liolaemus multicolor, Koslowsky 1896 [unclassified species]
Liomys irroratus (Gray 1868) [Heteromyidae]
Lontra felina (Molina 1782) [Mustelidae]
Lophopsittacus bensoni, Holyoak 1973 [unclassified species]
Lophotibis cristata (Boddaert 1783) [unclassified species]
Loxocemidae, family, E. D. Cope 1861 [Squamata]
Loxocemus, Cope 1861 [Squamata]
Loxocemus bicolor, Cope 1861 [unclassified species]
Lutra felina (Molina 1782) [Mustelidae]
Lutreola vison (Schreber 1777) [Mustelidae]
Lygaeidae, family, Schilling 1829 [Hemiptera]
Maakina [Strophomenidae]
Maaqwi, McLachlan et al. 2017 [unclassified genus]
Maaqwi cascadensis, McLachlan et al. 2017 [unclassified species]
Maaradactylus, Bantim et al. 2014 [unclassified genus]
Maaradactylus kellneri, Bantim et al. 2014 [unclassified species]
Maastrichtidelphys, Martin et al. 2005 [Mammalia]
Maastrichtidelphys meurismeti, Martin et al. 2005 [Mammalia]
Maastrichtiella, Simon 2005 [Terebratulida]
Maastrichtiella costellata, Simon 2005 [Terebratulida]
Maatidesmus, Riquelme and Hernández-Patricio 2014 [Chelodesmidae]
Maatidesmus paachtun, Riquelme and Hernández-Patricio 2014 [Chelodesmidae]
Mabelia [Triuridaceae]
Mabelia archaia, Gandolfo et al. 2002 [Triuridaceae]
Mabelia connatifila, Gandolfo et al. 2002 [Triuridaceae]
Mabella, Klenina 1984 [Leptellinidae]
Mabella conferta (Popov 1985) [Leptellinidae]
Mabella halis (Percival 1991) [Leptellinidae]
Mabella incurvata (Klenina 1984) [Leptellinidae]
Mabella obtusa (Klenina 1984) [Leptellinidae]
Mabella semiovalis (Klenina 1984) [Leptellinidae]
Mabellarca, Iredale 1939 [Arcidae]
Mabelllarca (Iredale 1939) [Arcidae]
Mabelysia, Shcherbakov 1995 [Limoniidae]
Mabelysia charlesi, Shcherbakov 1995 [Limoniidae]
Mabiania [Problematica]
Mabianoconullus [Scyphozoa]
Mabokopithecus, G.H.R. von Koenigswald 1969 [Suidae]
Mabuya, Fitzinger 1826 [Scincidae]
Macabeemyrma, Archibald et al. 2006 [Formicidae]
Macabeemyrma ovata, Archibald et al. 2006 [Formicidae]
Macaca, Lacépčde 1799 [Cercopithecidae]
Macaca arctoides (I. Geoffroy 1831) [Cercopithecidae]
Macaca assamensis (MacClelland 1839) [Cercopithecidae]
Macaca cyclopis (Swinhoe 1863) [Cercopithecidae]
Macaca fascicularis (Raffles 1822) [Cercopithecidae]
Macaca fascicularis mordax (Thomas and Wroughton 1909) [unclassified subspecies]
Macaca florentina, Cocchi 1872 [unclassified species]
Macaca irus (Blanford 1887) [Cercopithecidae]
Macaca irus phaeura (Miller 1903) [Cercopithecidae]
Macaca mordax, Thomas and Wroughton 1909 [unclassified species]
Macaca mulatta (Zimmermann 1780) [Cercopithecidae]
Macaca nemestrina (Linnaeus 1766) [Cercopithecidae]
Macaca phaeura (Miller 1903) [Cercopithecidae]
Macaca prisca, Gervais 1859 [unclassified species]
Macaca radiata (E. Geoffroy 1812) [Cercopithecidae]
Macaca silenus (Linnaeus 1758) [Cercopithecidae]
Macaca sinica (Linnaeus 1771) [Cercopithecidae]
Macaca sylvana (Linnaeus 1758) [unclassified species]
Macaca sylvanus (Linnaeus 1758) [Cercopithecidae]
Macaca syrichta (Linnaeus 1758) [Tarsiidae]
Macaca thibetana (Milne-Edwards 1870) [Cercopithecidae]
Macacus (Lacépčde 1799) [Cercopithecidae]
Macacus (Pithex), Hodgson 1840 [Cercopithecidae]
Macacus (Pithex) oinops, Hodgson 1840 [Cercopithecidae]
Macacus (Pithex) pelops, Hodgson 1840 [Cercopithecidae]
Macacus arctoides, I. Geoffroy 1831 [Cercopithecidae]
Macacus assamensis, MacClelland 1839 [Cercopithecidae]
Macacus cyclopis, Swinhoe 1863 [Cercopithecidae]
Macacus cynomolgus (Schreber 1775) [Cercopithecidae]
Macacus eocaenus, Owen 1846 [Cercopithecidae]
Macacus gelada, Rüppell 1835 [Cercopithecidae]
Macacus hamadryas (Linnaeus 1758) [Cercopithecidae]
Macacus irus, Blanford 1887 [Cercopithecidae]
Macacus nemestrinus (Linnaeus 1766) [Cercopithecidae]
Macacus phaeura, Miller 1903 [Cercopithecidae]
Macacus pileatus (Blyth 1843) [Cercopithecidae]
Macacus pileatus (R. Kerr 1792) [Primates]
Macacus priscus, Gervais 1859 [Cercopithecidae]
Macacus problematicus, Gray 1870 [Cercopithecidae]
Macacus radiatus (E. Geoffroy 1812) [Cercopithecidae]
Macacus rhesosimilis, Sclater 1872 [Cercopithecidae]
Macacus rhesus (Audebert 1798) [Cercopithecidae]
Macacus robustus, C.-C. Young [Cercopithecidae]
Macacus silenus (Linnaeus 1758) [Cercopithecidae]
Macacus sinicus (Linnaeus 1771) [Cercopithecidae]
Macacus sivalensus, Lydekker 1878 [unclassified species]
Macacus thibetanus, Milne-Edwards 1870 [Cercopithecidae]
Macalia, H. Adams 1860 [Tellinidae]
Macalia bruguieri (Hanley 1844) [Tellinidae]
Macaliopsis [Tellinidae]
Macaliopsis craticula (Sowerby 1850) [Tellinidae]
Macalpina, Krzemiński and Teskey 1987 [Limoniidae]
Macalpina incomparabilis, Krzemiński and Teskey 1987 [Limoniidae]
Macalpinia, Yoshimoto 1975 [Mymaridae]
Macalpinia canadensis, Yoshimoto 1975 [Mymaridae]
Macandrevia [Zeilleriidae]
Macandrevia africana, Cooper 1975 [Zeilleriidae]
Macandrevia americana, Dall 1895 [Zeilleriidae]
Macandrevia bayeri, Cooper 1975 [Zeilleriidae]
Macandrevia cooperi, Bitner 1996 [Zeilleriidae]
Macandrevia craniella, Dall 1895 [Zeilleriidae]
Macandrevia cranium (Muller 1776) [unclassified species]
Macandrevia delicatula, Hatai 1836 [unclassified species]
Macandrevia diamantina, Dall 1895 [Zeilleriidae]
Macandrevia nipponica, Nomura and Hatai 1936 [Zygonaria]
Macandrevia tenera, Jeffreys 1876 [Zeilleriidae]
Macandrevia vanhoffeni, Blochmann 1906 [Zeilleriidae]
Macandrevia waldae, Hondt 1976 [Zeilleriidae]
Macandreviidae, family, Cooper 1973 [unclassified family]
Macandreviinae, subfamily, Cooper 1973 [Zeilleriidae]
Macandrewia [Demospongea]
Macandrewites [Demospongea]
Macannaia, Jell 1975 [Eodiscidae]
Macanopsis, Macsotay 1967 [Ichnofossils]
Macaranga, Thouars 1806 [Euphorbiaceae]
Macaranga tanarius, Müller and Candolle 1886 [Euphorbiaceae]
Macaria (Westring 1851) [Gnaphosidae]
Macaria orata, Menge 1854 [Araneae]
Macaria procera, Koch and Berendt 1854 [Gnaphosidae]
Macaria squamata, Menge 1854 [Araneae]
Macaria tenella, Heer 1865 [Gnaphosidae]
Macaria tenuis, Menge 1854 [Araneae]
Macaroblattula, Wang et al. 2007 [Blattulidae]
Macaroblattula ellipsoides, Wang et al. 2007 [Blattulidae]
Macarocrinus, Jaekel 1895 [Diplobathrida]
Maccaffertium, Bednarik 1979 [Heptageniidae]
Maccaffertium annae, Macadam and Ross 2016 [Heptageniidae]
Maccarthyites, Matsumoto 1959 [Kossmaticeratidae]
Maccoya, Pomel 1869 [Palaechinidae]
Maccoyella [Oxytomidae]
Maccoyella corbiensis (Moore 1870) [Oxytomidae]
Maccoyella reflecta (Moore 1870) [Oxytomidae]
Maccoyellinae, subfamily, Waterhouse 2008 [Oxytomidae]
Maccoyoceras, Miller et al. 1933 [Trigonoceratidae]
Maccullochella, Whitley 1929 [Perciformes]
Macedonitherium, Sickenberg 1967 [Giraffidae]
Macellodon (Owen 1854) [Goniopholididae]
Macellodus, Owen 1854 [Goniopholididae]
Macellodus brodiei, Owen 1854 [Goniopholididae]
Macellognathus (Marsh 1884) [Reptilia]
Macelloura, Resser 1935 [Ptychopariida]
Macelognatha, order, Marsh 1884 [Reptilia]
Macelognathidae, family, Marsh 1884 [Macelognatha]
Macelognathus, Marsh 1884 [Reptilia]
Macelognathus vagans, Marsh 1884 [Reptilia]
Maceratites, Buckman 1928 [Sonniniidae]
Macerodus [Conodontophorida]
Macgea [Anthozoa]
Macgeea, Webster 1889 [Phillipsastraeidae]
Macgeea camplanulata, Sorauf 1998 [Phillipsastraeidae]
Macgeea concinnula, Sorauf 1998 [Phillipsastraeidae]
Macgeea ponderosa, Stumm 1960 [Phillipsastraeidae]
Macgeea pustulosa, McLean 2005 [Phillipsastraeidae]
Macgeea soraufi, McLean 2005 [Phillipsastraeidae]
Macgeopsis, Alloiteau 1957 [Ellipsosmiliidae]
Macgeopsis complanata, Alloiteau 1958 [Ellipsosmiliidae]
Macgeopsis grandidieri (de Fromentel 1873) [Ellipsosmiliidae]
Macgeopsis sonorensis, Beauvais and Stump 1976 [Ellipsosmiliidae]
Macgeopsis subcylindrata, Alloiteau 1958 [Ellipsosmiliidae]
Macgeopsis turbinata, Alloiteau 1958 [Ellipsosmiliidae]
Macgillavryia, Rojas et al. 1995 [Radiolitidae]
Macgillivrayi, Forbes 1852 [Tonnidae]
Macginitiea, J. A. Wolfe and W. C. Wehr 1986 [unclassified genus]
Macginitiea gracilis, J. A. Wolfe and W. C. Wehr 1987 [Macginitiea]
Macginitiea nobilis, Manchester 2014 [Macginitiea]
Macgowania, Motani 1999 [Ichthyopterygia]
Macgowania janiceps (C. McGowan 1996) [Ichthyopterygia]
Macgowaniidae, family, McGowan and Motani 2003 [Ichthyopterygia]
Macha, Oken 1835 [Solecurtidae]
Macha philippinarum, Dunker 1862 [Solecurtidae]
Macha strigillata (Linnaeus 1767) [Solecurtidae]
Macha vicksburgensis (Aldrich 1885) [Solecurtidae]
Machadoniinae, subfamily, Lehtinen 1967 [Zoropsidae]
Machaena, Gray 1843 [Mesodesmatidae]
Machaeracanthus, Newberry 1857 [Acanthoessidae]
Machaeracanthus bohemicus (Barrande 1872) [Acanthoessidae]
Machaeracanthus sulcatus, Newberry 1857 [Acanthoessidae]
Machaeraria [Machaerariidae]
Machaerariidae, family, Savage 1996 [Rhynchonellida]
Machaeratoechia [Machaerariidae]
Machaeridia, class [Annelida]
Machaerina, Vahl 1805 [Cyperaceae]
Machaerius, Rouault 1858 [Acanthoessidae]
Machaerocolella, Li and Han 1980 [Trimerellidae]
Machaerodonax [Cardiida]
Machaerodus (Kaup 1833) [Felidae]
Machaerodus brachyops, Cope 1878 [Nimravidae]
Machaerodus cerebralis, Cope 1880 [Nimravidae]
Machaerodus fatalis (Leidy 1868) [Felidae]
Machaerodus floridanus, Leidy 1889 [Felidae]
Machaerodus gracilis (Cope 1880) [Felidae]
Machaerodus insignis, Filhol 1876 [Nimravidae]
Machaerodus ischyrus, Merriam 1905 [Felidae]
Machaerodus mercerii (Cope 1895) [Felidae]
Machaerodus niobrarensis, Thorpe 1922 [Felidae]
Machaerodus oreodontis, Cope 1873 [Nimravidae]
Machaerodus strigidens, Cope 1878 [Nimravidae]
Machaerognathus, Hussakof and Bryant 1919 [Dinichthyidae]
Machaeroides, Matthew 1909 [Oxyaenidae]
Machaeroides eothen, Matthew 1909 [Oxyaenidae]
Machaeroides simpsoni, Dawson et al. 1986 [Oxyaenidae]
Machaeroidinae, subfamily [unclassified subfamily]
Machaeroidini, tribe, Matthew 1909 [Hyaenodontidae]
Machaeromeryx, Matthew 1926 [Moschidae]
Machaeromeryx gilchristensis, White 1941 [Moschidae]
Machaeromeryx tragulus, Matthew 1926 [Moschidae]
Machaeroplax, Friele 1877 [unclassified genus]
Machaeroprosopus, Mehl 1916 [Parasuchidae]
Machaeroprosopus adamanensis, Camp 1930 [Parasuchidae]
Machaeroprosopus andersoni, Mehl 1922 [Parasuchidae]
Machaeroprosopus buceros (Cope 1881) [Parasuchidae]
Machaeroprosopus gregorii, Camp 1930 [Parasuchidae]
Machaeroprosopus jablonskiae (Parker and Irmis 2006) [Parasuchidae]
Machaeroprosopus lithodendrorum, C. L. Camp 1930 [Parasuchidae]
Machaeroprosopus lottorum, Hungerbühler et al. 2013 [Parasuchidae]
Machaeroprosopus mccauleyi (K. L. Ballew 1989) [Parasuchidae]
Machaeroprosopus pristinus (Mehl 1928) [Parasuchidae]
Machaeroprosopus tenuis, C. L. Camp 1930 [Parasuchidae]
Machaeroprosopus validus, Mehl 1916 [Parasuchidae]
Machaeroprosopus zunii, Camp 1930 [Parasuchidae]
Machaerosaurus, Gilmore 1928 [Anguidae]
Machaerosaurus pawneensis (Gilmore 1928) [Anguidae]
Machaerosaurus torrejonensis, Gilmore 1928 [Anguidae]
Machairagnostus, Harrington and Leanza 1957 [Diplagnostidae]
Machairagnostus corrugatus (Suarez Soruco 1976) [unclassified species]
Machairagnostus tmetus, Harrington and Leanza 1957 [Diplagnostidae]
Machairasaurus, Longrich et al. 2010 [Oviraptoridae]
Machairasaurus leptonychus, Longrich et al. 2010 [Oviraptoridae]
Machairoceratops, Lund et al. 2016 [Ceratopsidae]
Machairoceratops cronusi, Lund et al. 2016 [Ceratopsidae]
Machairodontinae, subfamily, Gill 1872 [Felidae]
Machairodontini, tribe, Gill 1872 [Felidae]
Machairodus, Kaup 1833 [Felidae]
Machairodus bidentatus, Filhol 1872 [Nimravidae]
Machairodus catocopis, Cope 1887 [Felidae]
Machairodus coloradensis, Cook 1922 [Felidae]
Machairodus giganteus, A. Wagner 1848 [unclassified species]
Machairodus hesperus, Gazin 1933 [Felidae]
Machairodus irtyschensis, Orlov 1936 [Felidae]
Machairodus ischimicus, Orlov 1936 [Felidae]
Machairodus kabir, Peigne et al. 2005 [Felidae]
Machairodus kurteni, Sotnikova 1991 [Felidae]
Machairodus latidens, Owen 1867 [unclassified species]
Machairodus necator, Gervais 1880 [Felidae]
Machairodus occidentalis, Leidy 1866 [Nimravidae]
Machairodus orientalis, Kittl 1887 [Felidae]
Machairodus primaevus, Leidy and Owen 1851 [Nimravidae]
Macharia, Choi et al. 2008 [Alsataspididae]
Macharia pengi, Choi et al. 2008 [Alsataspididae]
Macheiramphus, Bonaparte 1850 [unclassified genus]
Macheiramphus alcinus, Bonaparte 1850 [unclassified species]
Machephilus, Johnson 1867 [Squalidae]
Machichnus, Mikulas et al. 2006 [Chondrichthyes]
Machichnus bohemicus, Mikulas et al. 2006 [Chondrichthyes]
Machieramphus (Bonaparte 1850) [unclassified genus]
Machieramphus alcinus (Bonaparte 1850) [unclassified species]
Machilida, order, Grassi 1888 [Insecta]
Machilida, suborder (Grassi 1888) [unclassified suborder]
Machilidae, family, M. Grassi 1888 [Microcoryphia]
Machilinae, subfamily, Grassi 1888 [Machilidae]
Machilis, Latreille 1802 [Machilidae]
Machilis acuminata (Koch and Berendt 1854) [Machilidae]
Machilis albomaculata (Menge 1854) [Machilidae]
Machilis anableps, von Olfers 1907 [Machilidae]
Machilis anguea (Koch and Berendt 1854) [Machilidae]
Machilis boops, von Olfers 1907 [Machilidae]
Machilis caestifera, Silvestri 1912 [Machilidae]
Machilis capito, von Olfers 1907 [Machilidae]
Machilis chlamydophora, von Olfers 1907 [Machilidae]
Machilis cincta, von Olfers 1907 [Machilidae]
Machilis cineracea, von Olfers 1907 [Machilidae]
Machilis corusca (Koch and Berendt 1854) [Machilidae]
Machilis diastatica (von Olfers 1907) [Machilidae]
Machilis electa (Koch and Berendt 1854) [Machilidae]
Machilis exilis, von Olfers 1907 [Machilidae]
Machilis exophthalmos, von Olfers 1907 [Machilidae]
Machilis fasciola, Nicolet 1847 [Machilidae]
Machilis longipalpis (Koch and Berendt 1854) [Machilidae]
Machilis macrura (Menge 1854) [Machilidae]
Machilis microphthalmos, von Olfers 1907 [Machilidae]
Machilis palaemon, von Olfers 1907 [Machilidae]
Machilis polypoda, Silvestri 1907 [Machilidae]
Machilis saliens (Menge 1854) [Machilidae]
Machilis shiobarensis, Naora 1933 [Machilidae]
Machilis signata, von Olfers 1907 [Machilidae]
Machilis succini, Gadeau de Kerville 1893 [Machilidae]
Machilis zebrina, von Olfers 1907 [Machilidae]
Machilla, Petrunkevitch 1958 [Clubionidae]
Machilla setosa, Petrunkevitch 1958 [Clubionidae]
Machilodes, von Olfers 1907 [Machilidae]
Machilodes diastatica, von Olfers 1907 [Machilidae]
Machiloidea, superfamily, Grasse 1888 [Archaeognatha]
Machilopsis, von Olfers 1907 [Lepidotrichidae]
Machilopsis affinis, von Olfers 1907 [Lepidotrichidae]
Machimosaurini, tribe, Jouve et al. 2016 [Reptilia]
Machimosaurus [Reptilia]
Machimosaurus bathonicus, Sauvage 1874 [Teleosauridae]
Machimosaurus buffetauti, Young et al. 2014 [Reptilia]
Machimosaurus ferox, Sauvage 1874 [Reptilia]
Machimosaurus hugii (Meyer 1837) [Reptilia]
Machimosaurus interruptus, Sauvage 1874 [Reptilia]
Machimosaurus mosae, Sauvage and Lienard 1879 [Reptilia]
Machimosaurus nowackianus (Huene 1938) [Reptilia]
Machimosaurus rex, Fanti et al. 2016 [Reptilia]
Machimosaurus rigauxi, Sauvage 1874 [Teleosauridae]
Machimus, Loew 1849 [Asilidae]
Machimus kollmanni, Timon-David 1944 [Asilidae]
Machinosaurus [Reptilia]
Machlydotherium, Ameghino 1902 [Dasypodidae]
Machlydotherium asperum, Ameghino 1902 [Dasypodidae]
Machlydotherium ater, Ameghino 1902 [Dasypodidae]
Machlydotherium intortum, Ameghino 1902 [Dasypodidae]
Machlydotherium sparsum (Ameghino 1902) [Dasypodidae]
Machlydotherium sparsus, Ameghino 1902 [Dasypodidae]
Machocyon, Gingerich et al. 1999 [Quettacyonidae]
Machocyon abbasi, Gingerich et al. 1999 [Quettacyonidae]
Machomya [Pholadomyida]
Machrochilina (Bayle 1880) [Soleniscidae]
Machrochilina bulimina (Lindström 1884) [Meekospiridae]
Machrochilina cancellata (Lindström 1884) [Soleniscidae]
Macilentos (Clark and Palmer 1923) [Strombidae]
Mackenzia, Briggs et al 1994 [Actiniaria]
Mackenziecyathus [Ajacicyathida]
Mackenziella, Voronova et al. 1987 [Mollusca]
Mackenziella dilatata, Voronova et al. 1987 [Mackenziella]
Mackenziellidae, family, Yosii 1961 [Symphypleona]
Mackenziephyllum, Pedder 1971 [Cystiphyllidae]
Mackenziurus, Edgecom 1990 [Encrinuridae]
Mackenziurus emielityi, Gass 1999 [Encrinuridae]
Mackenziurus lauriae, Gass et al. 1992 [Encrinuridae]
Mackerrovia, Cocks 1968 [Rafinesquinidae]
Mackerrovia jinei, Cocks 2014 [Rafinesquinidae]
Mackerrovia lobatus (Lamont and Gilbert 1945) [Rafinesquinidae]
Mackinlaya, Mueller 1864 [Araliaceae]
Mackinneyella, Morozova and Lisitsyn 1996 [Polyporidae]
Mackinneyella brevicellata (Baranova 1960) [Polyporidae]
Mackinneyella dzhulfensis (Morozova 1965) [Polyporidae]
Mackinneyella extenta (Trizna 1939) [Polyporidae]
Mackinneyella firma (Gorjunova and Morozova 1979) [Polyporidae]
Mackinneyella granulosa, Reid 2003 [Polyporidae]
Mackinneyella hinganensis (Romantchuk 1966) [Polyporidae]
Mackinneyella kutorgae (Stuckenberg 1895) [Polyporidae]
Mackinneyella maccoyana (Ulrich 1890) [Polyporidae]
Mackinneyella medvedkensis (Schulga-Nesterenko 1951) [Polyporidae]
Mackinneyella ogbinensis (Nikiforova 1933) [Polyporidae]
Mackinneyella ornamentata (Schulga-Nesterenko 1941) [Polyporidae]
Mackinneyella ovalifenestrata (Sakagami 1964) [Polyporidae]
Mackinneyella polygona (Kruchinina 1986) [Polyporidae]
Mackinneyella praepluriformis (Morozova 1965) [Polyporidae]
Mackinneyella pseudoornamentata (Yang and Lu 1962) [Polyporidae]
Mackinneyella robustiformis (Morozova 1965) [Polyporidae]
Mackinneyella sibirica (Yanischevskyi 1915) [Polyporidae]
Mackinneyella stylettia, Gilmour and Snyder 2000 [Polyporidae]
Mackinneyella subornamentata (Shulga-Nesterenko 1951) [Polyporidae]
Mackinneyella supraornamentata (Schulga-Nesterenko 1952) [Polyporidae]
Mackinneyella tortuosa (Trizna 1938) [Polyporidae]
Mackinnonia, Bengtson et al. 1990 [Trenellidae]
Mackinnonia anabarica, Parkhaev 2005 [Trenellidae]
Mackinnonia anhuiensis (Zhou and Xiao 1984) [Trenellidae]
Mackinnonia corrugata (Bengtson et al. 1990) [Trenellidae]
Mackinnonia costa (Zhou and Xiao 1984) [Trenellidae]
Mackinnonia costata (Zhou and Xiao 1984) [Trenellidae]
Mackinnonia davidi, Bengtson et al. 1990 [Trenellidae]
Mackinnonia obliqua, Landing and Bartowski 1996 [Trenellidae]
Mackinnonia plicata (Missarzhevsky 1989) [Trenellidae]
Mackinnonia puppis, Hřyberget et al. 2015 [Trenellidae]
Mackinnonia rostrata (Zhou and Xiao 1984) [Trenellidae]
Mackinnonia rostratum (Zhou and Xiao 1984) [Trenellidae]
Mackinnonia taconia (Landing and Bartowski 1996) [Trenellidae]
Mackinnonia taconica (Landing and Bartowski 1996) [Trenellidae]
Maclarenella [Cranaenidae]
Maclearnia, Crickmay 1930 [Pectinidae]
Maclearnoceras, E. T. Tozer 1963 [Trachyceratidae]
Maclearnoceras enode, Tozer 1972 [Trachyceratidae]
Maclearnoceras ensio, Tozer 1994 [Trachyceratidae]
Maclearnoceras maclearni, Tozer 1963 [Trachyceratidae]
Macleayius, Gray 1864 [Balaenidae]
Macleayius australiensis, Gray 1866 [Balaenidae]
Macleodiella, Badano and Engel 2018 [unclassified genus]
Macleodiella electrina, Badano and Engel 2018 [unclassified species]
Maclurea (Le Sueur 1818) [Macluritidae]
Maclurea acuminata, Billings 1865 [Macluritidae]
Maclurea acuta (Parks 1913) [unclassified species]
Maclurea affinis, Billings 1865 [Macluritidae]
Maclurea annulata, C.D. Walcott 1884 [Ophiletidae]
Maclurea atlantica, Billings 1859 [Macluritidae]
Maclurea bigsbyi, Hall 1861 [Macluritidae]
Maclurea bigsbyi dixonensis, Hall 1861 [Macluritidae]
Maclurea comes, Perner 1903 [Macluritidae]
Maclurea corniculum, d'Eichwald 1860 [Lesueurillidae]
Maclurea crassa, Ulrich and Scofield 1897 [Macluritidae]
Maclurea crassa macra, Ulrich and Scofield 1897 [Macluritidae]
Maclurea crenulata, Billings 1865 [Macluritidae]
Maclurea cuneata, Whitfield 1878 [Macluritidae]
Maclurea depressa, Ulrich and Scofield 1897 [Macluritidae]
Maclurea dilatata, Koken 1896 [Lesueurillidae]
Maclurea emmonsi, Billings 1865 [Macluritidae]
Maclurea exsul, Koken 1897 [Macluritidae]
Maclurea gradata, Koken 1897 [Lesueurillidae]
Maclurea helix, d'Eichwald 1860 [Lesueurillidae]
Maclurea infundibulum, Koken 1896 [Lesueurillidae]
Maclurea knoxvillensis, Ulrich and Scofield 1897 [Macluritidae]
Maclurea kotoi, Kobayashi 1930 [Macluritidae]
Maclurea logani, Salter 1852 [Macluritidae]
Maclurea macromphalus, F. M'Coy 1851 [Ophiletidae]
Maclurea magna (Le Sueur 1818) [Macluritidae]
Maclurea magnus (Le Sueur 1818) [Macluritidae]
Maclurea manitobensis, Whiteaves 1890 [Macluritidae]
Maclurea manitobensis acuta, Parks 1913 [Macluritidae]
Maclurea matutina, Hall 1847 [Macluritidae]
Maclurea neritioides, d'Eichwald 1860 [Macluritidae]
Maclurea neritoides, d'Eichwald 1860 [Macluritidae]
Maclurea nitida, Ulrich and Scofield 1897 [Macluritidae]
Maclurea niuhsintaiensis, T. Kobayashi 1930 [Macluritidae]
Maclurea oceana, Billings 1865 [Macluritidae]
Maclurea odenvillensis, Butts 1926 [Macluritidae]
Maclurea peachi, Murchison 1859 [unclassified species]
Maclurea planorbis, Koken 1897 [Macluritidae]
Maclurea ponderosa, Billings 1865 [Macluritidae]
Maclurea profunda, C. Butts 1926 [Macluritidae]
Maclurea rotundata, Billings 1865 [Macluritidae]
Maclurea salteri, J.D. Longstaff 1924 [Macluritidae]
Maclurea sedgwicki, Longstaff 1924 [Macluritidae]
Maclurea sordida, J. Hall 1847 [Macluritidae]
Maclurea speciosa, Billings 1865 [Ophiletidae]
Maclurea striatus, Emmons 1842 [Raphistomatidae]
Maclurea subovata, Parks 1913 [Macluritidae]
Maclurea subrotunda, R.P. Whitfield 1878 [Macluritidae]
Maclurea sylpha, Billings 1865 [Macluritidae]
Maclurea tofangoense, T. Kobayashi 1930 [Macluritidae]
Maclurea transitionis, Billings 1865 [Ophiletidae]
Maclureadae, family, Carpenter 1861 [Euomphalina]
Maclurina, Ulrich and Scofield 1897 [Macluritidae]
Maclurina acutus (Parks 1913) [unclassified species]
Maclurina bigsbyi (Hall 1861) [Macluritidae]
Maclurina comes (Perner 1903) [Macluritidae]
Maclurina crassa (Ulrich and Scofield 1897) [Macluritidae]
Maclurina cuneata (Whitfield 1878) [Macluritidae]
Maclurina logani (Salter 1852) [Macluritidae]
Maclurina major (Troedsson 1928) [unclassified species]
Maclurina manitobensis (Whiteaves 1890) [Macluritidae]
Maclurina manitobensis ovalis, Wilson 1931 [Macluritidae]
Maclurina sedgwicki (Longstaff 1924) [Macluritidae]
Maclurina septentrionalis (Wilson 1931) [Macluritidae]
Maclurina serpentrionalis (Koken and Perner 1925) [Macluritidae]
Maclurina subrotunda (R.P. Whitfield 1878) [Macluritidae]
Macluritacea, superfamily (Carpenter 1861) [Euomphalina]
Macluritella, Kirk 1927 [Macluritidae]
Macluritella (Euomphalopsis) (Ulrich et al. 1931) [Euomphalidae]
Macluritella carinifera (Flower 1968) [Macluritidae]
Macluritella gyroceras (Roemer 1852) [Macluritidae]
Macluritella imperfecta (Flower 1968) [Macluritidae]
Macluritella marylandica, Sando 1957 [Macluritidae]
Macluritella mediosulcata (Kobayashi 1955) [Macluritidae]
Macluritella multiseptarius (Cleland 1900) [Macluritidae]
Macluritella ornata (Lochman 1966) [Macluritidae]
Macluritella peachi (Murchison 1859) [unclassified species]
Macluritella rotunda (Flower 1968) [Macluritidae]
Macluritella sordida (J. Hall 1847) [Macluritidae]
Macluritella stantoni, Kirk 1927 [Macluritidae]
Macluritella tympama (Kobayashi 1955) [Macluritidae]
Macluritella uniangulata (Hall 1847) [Macluritidae]
Macluritella walcotti (Howell 1946) [Coleolidae]
Macluritella wanwanensis, T Kobayashi 1933 [Macluritidae]
Maclurites, Le Sueur 1818 [Macluritidae]
Maclurites (Lesueurilla) (Koken 1898) [Lesueurillidae]
Maclurites (Lesueurilla) meitanensis (Yü 1933) [Macluritidae]
Maclurites acuminata (Billings 1865) [Macluritidae]
Maclurites acuminatus (Billings 1865) [Macluritidae]
Maclurites acutus (Parks 1913) [unclassified species]
Maclurites acutus major, Troedsson 1928 [unclassified subspecies]
Maclurites affinis (Billings 1865) [Macluritidae]
Maclurites altus, Wilson 1931 [Macluritidae]
Maclurites annulatus (C.D. Walcott 1884) [Ophiletidae]
Maclurites arnzeni, Fix 1975 [Macluritidae]
Maclurites atlanticus (Billings 1859) [Macluritidae]
Maclurites bigsbyi (Hall 1861) [Macluritidae]
Maclurites borealis, Wilson 1938 [Macluritidae]
Maclurites christianiae (Koken and Perner 1925) [Macluritidae]
Maclurites crassa (Ulrich and Scofield 1897) [Macluritidae]
Maclurites crassus (Ulrich and Scofield 1897) [Macluritidae]
Maclurites crenulata (Billings 1865) [Macluritidae]
Maclurites crenulatus (Billings 1865) [Macluritidae]
Maclurites cuneata (Whitfield 1878) [Macluritidae]
Maclurites depressus (Ulrich and Scofield 1897) [Macluritidae]
Maclurites emmonsi (Billings 1865) [Macluritidae]
Maclurites expansa (Koken and Perner 1925) [Macluritidae]
Maclurites florentinensis, Banks and Johnson 1957 [Macluritidae]
Maclurites gravis (V.A. Vostokova 1964) [Macluritidae]
Maclurites klamathensis, Rohr 1980 [Macluritidae]
Maclurites knoxvillensis (Ulrich and Scofield 1897) [Macluritidae]
Maclurites logani (Salter 1852) [Macluritidae]
Maclurites magna, Le Sueur 1818 [Macluritidae]
Maclurites magnus (Le Sueur 1818) [Macluritidae]
Maclurites major (Troedsson 1928) [unclassified species]
Maclurites manitobensis (Whiteaves 1890) [Macluritidae]
Maclurites meitanensis, Yü 1933 [Macluritidae]
Maclurites nanus, Flower 1968 [Macluritidae]
Maclurites neridoides (d'Eichwald 1860) [Macluritidae]
Maclurites neritoides (d'Eichwald 1860) [Macluritidae]
Maclurites nitidus (Ulrich and Scofield 1897) [Macluritidae]
Maclurites niuhsintaiensis (T. Kobayashi 1930) [Macluritidae]
Maclurites oceana (Billings 1865) [Macluritidae]
Maclurites oceanus (Billings 1865) [Macluritidae]
Maclurites orientalis, Yü 1961 [Macluritidae]
Maclurites ovalis (V.A. Vostokova 1964) [Macluritidae]
Maclurites ponderosus (Billings 1865) [Macluritidae]
Maclurites profunda (C. Butts 1926) [Macluritidae]
Maclurites romainensis, Twenhofel 1938 [Macluritidae]
Maclurites salteri (J.D. Longstaff 1924) [Macluritidae]
Maclurites septentrionalis, Wilson 1931 [Macluritidae]
Maclurites septentrionalis, Koken and Perner 1925 [Macluritidae]
Maclurites serpentrionalis, Koken and Perner 1925 [Macluritidae]
Maclurites sinkiangensis, Yü 1961 [Lesueurillidae]
Maclurites smithvillensis, Fix 1975 [Macluritidae]
Maclurites subovatus (Parks 1913) [Macluritidae]
Maclurites subrotunda (R.P. Whitfield 1878) [Macluritidae]
Maclurites sylpha (Billings 1865) [Macluritidae]
Maclurites thompsoni, Webers et al. 1992 [Onychochilidae]
Maclurites tofangoense (T. Kobayashi 1930) [Macluritidae]
Maclurites triangularis, Teichert 1937 [Macluritidae]
Maclurites ulrichi (Kobayashi 1933) [Onychochilidae]
Maclurites ungava, Wilson 1938 [Macluritidae]
Maclurites zhuozishanensis, Yü 1961 [Macluritidae]
Macluritida, order, Cox and Knight 1960 [unclassified order]
Macluritidae, family (Carpenter 1861) [Euomphalina]
Macluritina, suborder, Cox and Knight 1960 [Gastropoda]
Macluritina, order (Cox and Knight 1960) [Gastropoda]
Macluritoidea, superfamily, Carpenter 1861 [Euomphalina]
Macnamaratylus [Crinoidea]
Macnamaratylus murrayi, T.E. Bolton 1970 [Crinoidea]
Macoma, Leach 1819 [Tellinidae]
Macoma (Cymatoica) (Dall 1889) [Tellinidae]
Macoma (Cymatoica) occidentalis, Dall 1890 [Tellinidae]
Macoma (Heteromacoma) (Habe 1952) [Tellinidae]
Macoma (Heteromacoma) iris (Hanley 1845) [Tellinidae]
Macoma (Macoma), Leach 1819 [Tellinidae]
Macoma (Macoma) atsunaiensis, Honda 1988 [Tellinidae]
Macoma (Macoma) balthica, Linnaeus 1758 [Tellinidae]
Macoma (Macoma) brota (Dall 1916) [Tellinidae]
Macoma (Macoma) calcarea (Gmelin 1792) [Tellinidae]
Macoma (Macoma) calhounensis (Dall 1900) [Tellinidae]
Macoma (Macoma) carolinensis (Gardner and Aldrich 1919) [Tellinidae]
Macoma (Macoma) cookei (Gardner 1943) [Tellinidae]
Macoma (Macoma) crassula (Deshayes 1855) [unclassified species]
Macoma (Macoma) elimata (Dunnill and Coan 1968) [unclassified species]
Macoma (Macoma) galathea (Lamarck 1818) [Tellinidae]
Macoma (Macoma) golikovi (Scarlato and Kafanov 1988) [unclassified species]
Macoma (Macoma) incongrua (Martens 1865) [Tellinidae]
Macoma (Macoma) lama (Bartsch 1929) [unclassified species]
Macoma (Macoma) lipara (Dall 1916) [unclassified species]
Macoma (Macoma) loveni (Johnstrup 1882) [Tellinidae]
Macoma (Macoma) middendorffi (Dall 1884) [unclassified species]
Macoma (Macoma) moesta (Deshayes 1855) [Tellinidae]
Macoma (Macoma) obliqua (J. Sowerby 1817) [Tellinidae]
Macoma (Macoma) paralenis (Gardner 1947) [Tellinidae]
Macoma (Macoma) praetenuis (Leathes in Woodward 1830) [Tellinidae]
Macoma (Macoma) torelli (Johnstrup 1882) [unclassified species]
Macoma (Macoma) twinensis (Clark 1925) [unclassified species]
Macoma (Macoma) virginiana (Conrad 1866) [Tellinidae]
Macoma (Macoploma), Pilsbry and Olsson 1941 [Tellinidae]
Macoma (Macoploma) ecuadoriana, Pilsbry and Olsson 1941 [Tellinidae]
Macoma (Panacoma), Olsson 1942 [Cardiida]
Macoma (Panacoma) chiriquiensis, Olsson 1942 [Cardiida]
Macoma (Psammacoma) (Dall 1900) [Tellinidae]
Macoma (Psammacoma) acolasta (Dall 1921) [Tellinidae]
Macoma (Psammacoma) arctata (Conrad 1849) [Tellinidae]
Macoma (Psammacoma) candida, Lamarck 1818 [unclassified species]
Macoma (Psammacoma) carlottensis (Whiteaves 1880) [unclassified species]
Macoma (Psammacoma) democraciana, H. K. Hodson 1931 [Tellinidae]
Macoma (Psammacoma) ecuadoriana (Pilsbry and Olsson 1941) [Tellinidae]
Macoma (Psammacoma) elliptica (Lamarck 1818) [Tellinidae]
Macoma (Psammacoma) falconensis, Hodson and Hodson 1931 [Tellinidae]
Macoma (Psammacoma) galathea (Lamarck 1818) [Tellinidae]
Macoma (Psammacoma) gatunensis (Toula 1909) [Tellinidae]
Macoma (Psammacoma) grandis (Hanley 1844) [Tellinidae]
Macoma (Psammacoma) korobkovi, Kafanov 2001 [Tellinidae]
Macoma (Psammacoma) lamproleuca (Pilsbry and Lowe 1932) [Tellinidae]
Macoma (Psammacoma) marmorea, Gardner 1947 [Tellinidae]
Macoma (Psammacoma) medioamericana, Olsson 1942 [Tellinidae]
Macoma (Psammacoma) olivella, Dall 1900 [Tellinidae]
Macoma (Psammacoma) panamensis, Dall 1900 [Tellinidae]
Macoma (Psammacoma) riopirabica (Maury 1924) [Tellinidae]
Macoma (Psammacoma) siliqua (C. B. Adams 1852) [Tellinidae]
Macoma (Psammacoma) talarensis, Olsson 1928 [Tellinidae]
Macoma (Psammacoma) torynoides, Gardner 1947 [Tellinidae]
Macoma (Psammacoma) tracta, Dall 1900 [Tellinidae]
Macoma (Psammacoma) yoldiformis (Carpenter 1864) [Tellinidae]
Macoma (Psammacoma) zapotalensis (Spieker 1922) [Tellinidae]
Macoma (Rexithaerus) (Conrad 1869) [Tellinidae]
Macoma (Rexithaerus) andersoni (Clark 1915) [Tellinidae]
Macoma (Rexithaerus) dexioptera (Baxter 1977) [unclassified species]
Macoma (Rexithaerus) expansa (Carpenter 1864) [Tellinidae]
Macoma (Rexithaerus) indentata (Carpenter 1864) [Tellinidae]
Macoma (Rexithaerus) secta (Conrad 1837) [Tellinidae]
Macoma (Salmacoma), Iredale 1929 [Tellinidae]
Macoma (Tellina) (Linnaeus 1758) [Tellinidae]
Macoma (Tellina) gatunensis, Toula 1909 [Tellinidae]
Macoma acolasta, Dall 1921 [Tellinidae]
Macoma addicotti, Nikas 1977 [Tellinidae]
Macoma albaria, Conrad 1849 [Tellinidae]
Macoma andersoni, Clark 1915 [Tellinidae]
Macoma arctata (Conrad 1849) [Tellinidae]
Macoma astori, Dall 1909 [Tellinidae]
Macoma balthica (Linnaeus 1758) [Tellinidae]
Macoma biplicata (Conrad 1834) [Tellinidae]
Macoma brota, Dall 1916 [Tellinidae]
Macoma brota lipara, Dall 1916 [unclassified subspecies]
Macoma calcarea (Gmelin 1792) [Tellinidae]
Macoma calhounensis, Dall 1900 [Tellinidae]
Macoma carlottensis, Whiteaves 1880 [Tellinidae]
Macoma carolinensis, Gardner and Aldrich 1919 [Tellinidae]
Macoma conradi, Dall 1900 [Tellinidae]
Macoma constricta (Bruguičre 1792) [Tellinidae]
Macoma cookei, Gardner 1943 [Tellinidae]
Macoma costaricana, Olsson 1922 [Tellinidae]
Macoma cumana (O. G. Costa 1829) [Tellinidae]
Macoma danai, Harris 1919 [unclassified species]
Macoma dexioptera, Baxter 1977 [unclassified species]
Macoma edentula (Spengler 1798) [unclassified species]
Macoma edentula middendorffi, Dall 1884 [unclassified subspecies]
Macoma elimata, Dunnill and Coan 1968 [unclassified species]
Macoma elliptica (Lamarck 1818) [Tellinidae]
Macoma expansa, Carpenter 1864 [Tellinidae]
Macoma golikovi, Scarlato and Kafanov 1988 [unclassified species]
Macoma grandis (Hanley 1844) [Tellinidae]
Macoma incongrua (Martens 1865) [Tellinidae]
Macoma indentata, Carpenter 1864 [Tellinidae]
Macoma inornata (Hanley 1844) [Tellinidae]
Macoma inquinata (Deshayes 1855) [Tellinidae]
Macoma irus (Hanley 1845) [Tellinidae]
Macoma jacalitosana, R. A. Arnold 1910 [Tellinidae]
Macoma kelseyi, Dall 1900 [Tellinidae]
Macoma kirkinskayae, Krishtofovich 1957 [Tellinidae]
Macoma lama, Bartsch 1929 [unclassified species]
Macoma lamproleuca (Pilsbry and Lowe 1932) [Tellinidae]
Macoma lenis (Conrad 1843) [Tellinidae]
Macoma limula, Dall 1895 [Tellinidae]
Macoma lissoni, Olsson 1931 [Tellinidae]
Macoma lorenzoensis (Arnold 1908) [Tellinidae]
Macoma marylandica, Glenn 1904 [Tellinidae]
Macoma meroensis, Olsson 1931 [Tellinidae]
Macoma moesta (Deshayes 1855) [Tellinidae]
Macoma nasuta (Conrad 1837) [Tellinidae]
Macoma orientalis, Dall 1890 [Tellinidae]
Macoma osakaensis, Krishtofovich 1957 [Tellinidae]
Macoma pacis, Pilsbry and Lowe 1932 [Tellinidae]
Macoma paralenis, Gardner 1947 [Tellinidae]
Macoma piercei, Arnold 1910 [Tellinidae]
Macoma riopirabica, Maury 1924 [Tellinidae]
Macoma sabulosa (Spengler 1798) [Tellinidae]
Macoma scandula (Conrad 1834) [unclassified species]
Macoma secta (Conrad 1837) [Tellinidae]
Macoma sheridani, Vokes 1939 [unclassified species]
Macoma sillimani (Conrad 1846) [unclassified species]
Macoma simizuensis, Krishtofovich 1957 [Tellinidae]
Macoma sookensis, Clark and Arnold 1923 [Tellinidae]
Macoma tageliformis, Dall 1900 [Tellinidae]
Macoma tenera, Leach 1819 [Tellinidae]
Macoma tenta (Say 1834) [Tellinidae]
Macoma tenuiplicata (Bartrum 1919) [Tellinidae]
Macoma tigilensis, Kristofovich 1947 [Tellinidae]
Macoma tubulensis (Philippi 1887) [Tellinidae]
Macoma twinensis, Clark 1925 [Tellinidae]
Macoma uruguayensis, Smith 1885 [unclassified species]
Macoma vanvlecki, Arnold 1910 [unclassified species]
Macoma virginiana, Conrad 1866 [Tellinidae]
Macoma virginiana conradi (Dall 1900) [Tellinidae]
Macoma yoldiformis, Carpenter 1864 [Tellinidae]
Macominae, subfamily, Olsson 1961 [Tellinidae]
Macomona, Finlay 1926 [Tellinidae]
Macomona basedowi (Tate 1901) [Tellinidae]
Maconiceras, Buckman 1926 [Hildoceratidae]
Maconiceras lassum, Buckman 1927 [Hildoceratidae]
Maconiceras soloniacense (Lissajous 1906) [Hildoceratidae]
Maconiceras vigoense, Buckman 1926 [Hildoceratidae]
Macoploma (Pilsbry and Olsson 1941) [Tellinidae]
Macquaria, Lesson 1825 [Percichthyidae]
Macquaria antiquus, E. S. Hills 1934 [Percichthyidae]
Macquariella, Finlay 1927 [Littorinidae]
Macranhinga, Noriega 1992 [unclassified genus]
Macrarene, Hertlein and Strong 1951 [Turbinidae]
Macraster, Roemer 1888 [Toxasteridae]
Macratria, Newman 1838 [Anthicidae]
Macratria alleni, Telnov 2012 [Anthicidae]
Macratria appendiculata (Abdullah 1964) [Anthicidae]
Macratria gigantea, Wickham 1910 [Anthicidae]
Macratria succinia, Abdullah 1965 [Anthicidae]
Macratria tripunctata (Abdullah 1964) [Anthicidae]
Macratriinae, subfamily, LeConte 1862 [Anthicidae]
Macratriini, tribe, Le Conte 1862 [Anthicidae]
Macrauchenia, Owen 1838 [Macraucheniidae]
Macrauchenia antiqua, Ameghino 1887 [Macraucheniidae]
Macrauchenia boliviensis, Huxley 1860 [Macraucheniidae]
Macrauchenia ensenadense, Ameghino 1888 [Macraucheniidae]
Macrauchenia formosa, Moreno 1888 [Macraucheniidae]
Macrauchenia intermedia, Moreno 1888 [Macraucheniidae]
Macrauchenia media, Burmeister 1885 [unclassified species]
Macrauchenia minuta, Burmeister 1885 [unclassified species]
Macrauchenia patachonica, R. Owen 1838 [Macraucheniidae]
Macrauchenia patagonica (R. Owen 1838) [Macraucheniidae]
Macrauchenia ullomensis, Sefve 1914 [Macraucheniidae]
Macrauchenidae, family (Ameghino 1889) [Litopterna]
Macraucheniidae, family, Ameghino 1889 [Litopterna]
Macraucheniinae, family, Gervais 1855 [Macraucheniidae]
Macraucheniinae, subfamily (Gervais 1855) [Macraucheniidae]
Macrauchenioidea, superfamily, Cifelli 1983 [Litopterna]
Macraucheniopsis, Paula Couto 1945 [Macraucheniidae]
Macrauchenopsis, Paula Couto 1945 [Macraucheniidae]
Macraulacinae, subfamily, Fleutiaux 1923 [Eucnemidae]
Macraulacini, tribe, Fleutiaux 1923 [Eucnemidae]
Macraulostomus (Blot 1981) [Aulostomidae]
Macraulostomus veronensis (Blot 1980) [Aulostomidae]
Macrelcana, Karny 1932 [Stenopelmatidae]
Macrelcana ungeri (Heer 1849) [Stenopelmatidae]
Macrepistius, Cope 1895 [Amiiformes]
Macrerpeton, Moodie 1909 [Dissorophidae]
Macrerpeton deani, Moodie 1909 [Colosteidae]
Macrerpeton huxleyi (Cope 1875) [Dissorophidae]
Macridiscus [Cardiida]
Macristiidae, family [Clupeoidei]
Macroacaena, A. B. Tucker 1998 [Decapoda]
Macroacaena alseana, Rathbun 1932 [Decapoda]
Macroacaena bidentata, Rathbun 1935 [Decapoda]
Macroacaena bispinulata, Collins and Rasmussen 1992 [Decapoda]
Macroacaena chica, Schweitzer et al. 2003 [Decapoda]
Macroacaena elongata, A. Milne-Edwards 1862 [Decapoda]
Macroacaena franconia, Schweigert 2004 [Decapoda]
Macroacaena fudoujii, Karasawa 2000 [Decapoda]
Macroacaena leucosiae (Rathbun 1932) [Decapoda]
Macroacaena marionae, Tucker 1998 [Decapoda]
Macroacaena naselensis, Rathbun 1926 [Decapoda]
Macroacaena rosenkrantzi, Collins and Rasmussen 1992 [Decapoda]
Macroacaena schencki (Rathbun 1932) [Decapoda]
Macroacaena succedana, J. S. H. Collins and H. W. Rasmussen 1992 [Decapoda]
Macroacaena teshimai, Fujiyama and Takeda 1980 [Decapoda]
Macroacaena willapensis, Rathbun 1926 [Decapoda]
Macroacaena yanini, Ilyin and Alekseev 1998 [Decapoda]
Macroacaeninae, subfamily, Karasawa et al. 2014 [Decapoda]
Macroaulostomus, Blot 1981 [Aulostomidae]
Macroaulostomus veronensis, Blot 1980 [Aulostomidae]
Macrobaena, Tatarinov 1959 [Testudines]
Macrobaena mongolica, Tatarinov 1959 [unclassified species]
Macrobaenidae, family, Sukhanov 1964 [Testudines]
Macrobaenidae (Sukhanov 1964) [Testudines]
Macrobaeninae, subfamily, Nessov 1984 [Toxochelyidae]
Macroblattina, Bode 1953 [Caloblattinidae]
Macroblattina elegans, Bode 1953 [Caloblattinidae]
Macroblepharum, Alberti 1964 [Tropidocoryphidae]
Macrobrachium, Bate 1868 [Palaemoninae]
Macrobrachium novachollandiae, de Man 1908 [Palaemoninae]
Macrobrochinae, subfamily, Finks et al. 2004 [Vetulinidae]
Macrobrochus, Schrammen 1910 [Vetulinidae]
Macrobrochus emscheris, Schrammen 1910 [Vetulinidae]
Macrobrochus rimosus, Schrammen 1910 [Vetulinidae]
Macrocallista, Meek 1876 [Veneridae]
Macrocallista (Chionella) (Cossmann 1886) [Veneridae]
Macrocallista (Chionella) maculata (Linnaeus 1758) [Veneridae]
Macrocallista (Costacallista) (Palmer 1926) [Veneridae]
Macrocallista (Costacallista) domenginica, Vokes 1939 [unclassified species]
Macrocallista (Costacallista) emmonsi, Gardner 1943 [Veneridae]
Macrocallista (Costacallista) gabrielensis, Clark and Durham 1946 [Veneridae]
Macrocallista (Costacallista) masinguiensis, Clark and Durham 1946 [Veneridae]
Macrocallista (Costacallista) pseudoumbonella (Vredenburg 1928) [Veneridae]
Macrocallista (Costacallista) pseudoyawensis, Iqbal 1969 [Veneridae]
Macrocallista (Costacallista) steinekei, Clark and Durham 1946 [Veneridae]
Macrocallista (Macrocallista), Meek 1876 [Veneridae]
Macrocallista (Macrocallista) acuminata (Dall 1903) [Veneridae]
Macrocallista (Macrocallista) maculata (Linnaeus 1758) [Veneridae]
Macrocallista (Macrocallista) nimbosa (Solander 1786) [Veneridae]
Macrocallista (Macrocallista) reposta (Conrad 1834) [Veneridae]
Macrocallista (Megapitaria) (Grant and Gale 1931) [Veneridae]
Macrocallista (Megapitaria) albaria (Say 1830) [Veneridae]
Macrocallista (Megapitaria) inca, Olsson 1928 [unclassified species]
Macrocallista (Paradione) (Dall 1909) [Veneridae]
Macrocallista (Paradione) acuminata (Dall 1903) [Veneridae]
Macrocallista (Paradione) maculata (Linnaeus 1758) [Veneridae]
Macrocallista (Paradione) ovalina (Deshayes 1857) [Veneridae]
Macrocallista acuminata, Dall 1903 [Veneridae]
Macrocallista arenophila, Ihering 1907 [Veneridae]
Macrocallista ariakensis, Nagao 1928 [Veneridae]
Macrocallista aurantiaca (Sowerby 1831) [Veneridae]
Macrocallista caryi, Nelson 1925 [unclassified species]
Macrocallista cavachana, Hanna and Israelsky 1925 [Veneridae]
Macrocallista cordata, Waring 1917 [unclassified species]
Macrocallista densa, Moody 1916 [unclassified species]
Macrocallista erycina (Linnaeaus 1758) [Veneridae]
Macrocallista fallax (Deshayes 1857) [Veneridae]
Macrocallista furlongi, Nelson 1925 [unclassified species]
Macrocallista greeni, Ward and Blackwelder 1987 [Veneridae]
Macrocallista iheringi (Cossmann 1898) [Veneridae]
Macrocallista inca, Olsson 1928 [Veneridae]
Macrocallista laevigata (Lamarck 1806) [Veneridae]
Macrocallista maculata (Linnaeus 1758) [Veneridae]
Macrocallista marylandica (Conrad 1833) [Veneridae]
Macrocallista meganosensis, Clark and Woodford 1927 [Veneridae]
Macrocallista minuscula, Kellum 1926 [Veneridae]
Macrocallista nimbosa (Solander 1786) [Veneridae]
Macrocallista ovata, Rogers and Rogers 1837 [unclassified species]
Macrocallista packi, Dickerson 1914 [unclassified species]
Macrocallista pittsburgensis (Dall 1900) [Veneridae]
Macrocallista proxima (Deshayes 1857) [Veneridae]
Macrocallista rearensis, Clark 1932 [unclassified species]
Macrocallista reposta (Conrad 1834) [Veneridae]
Macrocallista squalida (G. B. Sowerby 1833) [Veneridae]
Macrocallista stantoni, Waring 1917 [unclassified species]
Macrocallista suberycinoides (Deshayes 1825) [Veneridae]
Macrocallista tia, Kellum 1926 [Veneridae]
Macrocallista traftoni, Olsson 1942 [Veneridae]
Macrocallista williamsoni, Weaver and Palmer 1922 [Veneridae]
Macrocamera, Gordon and d'Hondt 1997 [Eminooeciidae]
Macrocamera obesa, Gordon and Taylor 2015 [Eminooeciidae]
Macrocamera robusta, Bock and Cook 2001 [Eminooeciidae]
Macrocaris [Archaeostraca]
Macrocatinius, Ponomarenko 1969 [Coelocatiniidae]
Macrocatinius brachycephalus, Ponomarenko 1969 [Coelocatiniidae]
Macrocephaleon, Alifanov 2000 [Squamata]
Macrocephaleon chulsanensis (Sulimski 1975) [Polyglyphanodontidae]
Macrocephalites [Macrocephalitidae]
Macrocephalites andinus, Burckhardt 1903 [Sphaeroceratidae]
Macrocephalites araucanus, Burckhardt 1903 [Sphaeroceratidae]
Macrocephalites helvetiae, Tornquist 1894 [Macrocephalitidae]
Macrocephalites jacquoti (Douvillé 1878) [Macrocephalitidae]
Macrocephalites kobyi, de Loriol 1896 [Macrocephalitidae]
Macrocephalites liesbergensis, de Loriol 1896 [Macrocephalitidae]
Macrocephalites neuquensis, Stehn 1923 [Sphaeroceratidae]
Macrocephalites oxfordiense, Tornquist 1894 [Macrocephalitidae]
Macrocephalites pompeckji, Madsen 1904 [Cardioceratidae]
Macrocephalites tornquisti, de Loriol 1896 [Macrocephalitidae]
Macrocephalites waageni, Uhlig 1910 [Sphaeroceratidae]
Macrocephalitidae, family [Ammonitida]
Macrocephalochelys, Pidoplichko and Tarashchuk 1960 [Chelydridae]
Macrocephalochelys pontica, Pidoplichko and Tarashchuk 1960 [unclassified species]
Macrocephalosauria, infraorder, Alifanov 2000 [Squamata]
Macrocephalosauridae, family, Sulimski 1975 [Squamata]
Macrocephalosauroidea, superfamily, Alifanov 2000 [Squamata]
Macrocephalosaurus, Gilmore 1943 [Polyglyphanodontidae]
Macrocephalosaurus, Tupi-Caldas 1933 [Reptilia]
Macrocephalosaurus chulsanensis, Sulimski 1975 [Polyglyphanodontidae]
Macrocephalosaurus ferrugenous, Gilmore 1943 [Polyglyphanodontidae]
Macrocephalosaurus gilmorei, Sulimski 1975 [Polyglyphanodontidae]
Macrocephalosaurus mariensis, Tupi-Caldas 1933 [Reptilia]
Macrocephalosaurus sulimskii, Alifanov 2000 [Polyglyphanodontidae]
Macrocera, Meigen 1803 [Keroplatidae]
Macrocera abundare, Meunier 1904 [Keroplatidae]
Macrocera archaica (Armbruster 1938) [Keroplatidae]
Macrocera ciliata, Meunier 1904 [Keroplatidae]
Macrocera electricornis, Evenhuis 2006 [Keroplatidae]
Macrocera elegantissima, Meunier 1904 [Keroplatidae]
Macrocera filiformis, Meunier 1904 [Keroplatidae]
Macrocera grandis, Meunier 1899 [Keroplatidae]
Macrocera longicornis, Meunier 1904 [Keroplatidae]
Macrocera melanopoda, Hong 1974 [Keroplatidae]
Macrocera minuta, Meunier 1899 [Keroplatidae]
Macrocera rustica, Brodie 1845 [Diptera]
Macrocera soccata, Meunier 1899 [Keroplatidae]
Macrocera umbonata, Statz 1944 [Keroplatidae]
Macroceridae, family (Rondani 1856) [Keroplatidae]
Macrocerinae, subfamily, Rondani 1856 [Keroplatidae]
Macrocerini, tribe, Rondani 1856 [Keroplatidae]
Macrocerithium tramitense, Cragin 1893 [unclassified species]
Macrocerus, Motschulsky 1845 [Cantharidae]
Macrocerus sucinopenninus (Kuśka and Kania 2010) [Cantharidae]
Macrocheilidae, family, White 1877 [Murchisoniina]
Macrocheilos (Phillips 1841) [Soleniscidae]
Macrocheilos fusiforme, Frech 1894 [Soleniscidae]
Macrocheilos hermitei (E. Munier-Chalmas 1876) [Elasmonematidae]
Macrocheilus, Phillips 1841 [Soleniscidae]
Macrocheilus (Holopea) (Hall 1847) [Holopeidae]
Macrocheilus (Holopea) macrostomus, Hall 1861 [Holopeidae]
Macrocheilus acutus (Sowerby 1827) [Soleniscidae]
Macrocheilus adrianensis, Gemmellaro 1889 [Soleniscidae]
Macrocheilus altonensis, McChesney 1865 [Soleniscidae]
Macrocheilus anguliferus, White 1874 [Coelostylinidae]
Macrocheilus arculata (von Schlotheim 1820) [Soleniscidae]
Macrocheilus arculata elongata, Goldfuss 1844 [Soleniscidae]
Macrocheilus avellanoides, de Koninck 1863 [Soleniscidae]
Macrocheilus barroisi, Gemmellaro 1889 [Soleniscidae]
Macrocheilus brancoi, Gemmellaro 1889 [Soleniscidae]
Macrocheilus breve (Sowerby 1827) [Neritopsidae]
Macrocheilus buccinoides, G.A. Goldfuss 1844 [Soleniscidae]
Macrocheilus chemnithiaeformis, Gemmellaro 1889 [Soleniscidae]
Macrocheilus conicus, Gemmellaro 1889 [Soleniscidae]
Macrocheilus curvilineus (Phillips 1836) [Soleniscidae]
Macrocheilus depilis, de Koninck 1863 [Soleniscidae]
Macrocheilus dunkeri, Holzapfel 1882 [Meekospiridae]
Macrocheilus elongata, J. Phillips 1841 [Soleniscidae]
Macrocheilus fusiformis, Hall 1858 [Soleniscidae]
Macrocheilus gracilis, E.T. Cox 1857 [Soleniscidae]
Macrocheilus hebe, Hall 1859 [Subulitidae]
Macrocheilus humilis, Keyes 1888 [Soleniscidae]
Macrocheilus imbricatus (Sowerby 1827) [Soleniscidae]
Macrocheilus intercalaris, Meek and Worthen 1860 [Soleniscidae]
Macrocheilus intusplicatus, Gemmellaro 1889 [Soleniscidae]
Macrocheilus kansaensis, B.F. Shumard and G.C. Swallow 1858 [Soleniscidae]
Macrocheilus klipparti, Meek 1871 [Soleniscidae]
Macrocheilus littonanum (Hall 1856) [Strobeidae]
Macrocheilus macrostoma (Hall 1861) [Elasmonematidae]
Macrocheilus medialis, Meek and Worthen 1860 [Soleniscidae]
Macrocheilus micula, Girty 1909 [Elasmonematidae]
Macrocheilus neglectus, Phillips 1841 [Platyceratidae]
Macrocheilus newberryi (R.P. Stevens 1858) [Soleniscidae]
Macrocheilus nobilis (Sowerby 1826) [Soleniscidae]
Macrocheilus paludinaeformis, Hall 1858 [Soleniscidae]
Macrocheilus permicus, Netchaev 1894 [Soleniscidae]
Macrocheilus pinguis, Winchell 1863 [Soleniscidae]
Macrocheilus primigenius (Conrad 1835) [Soleniscidae]
Macrocheilus primogenia (Conrad 1835) [Soleniscidae]
Macrocheilus priscus, Whitfield 1893 [Nerrhenidae]
Macrocheilus pulchella, Meek 1872 [Soleniscidae]
Macrocheilus regularis (Cox 1857) [Soleniscidae]
Macrocheilus sandbergeri, Laube 1868 [Soleniscidae]
Macrocheilus sosiensis, Gemmellaro 1889 [Soleniscidae]
Macrocheilus stinesvillensis, E.R. Cumings 1906 [Soleniscidae]
Macrocheilus subcorpulentus, Whitfield 1882 [Strobeidae]
Macrocheilus subcostatus (von Schlotheim 1820) [Soleniscidae]
Macrocheilus subimbricatus, A.D. d'Orbigny 1850 [Soleniscidae]
Macrocheilus subulitoides, Gemmellaro 1889 [Soleniscidae]
Macrocheilus subzonatus, Gemmellaro 1889 [Soleniscidae]
Macrocheilus symmetricus, King 1844 [Meekospiridae]
Macrocheilus texanus, Shumard 1859 [Soleniscidae]
Macrocheilus typicus, F.B. Meek and A.H. Worthen 1860 [unclassified species]
Macrocheilus ventricosus, Hall 1858 [Soleniscidae]
Macrocheira, De Haan 1839 [Inachidae]
Macrocheira ginzanensis, Imaizumi 1965 [Inachidae]
Macrocheira longirostra, C. Schweitzer and R. Feldmann 1999 [Inachidae]
Macrocheira teglandi, Rathbun 1926 [Inachidae]
Macrocheira yabei, Imaizumi 1957 [Inachidae]
Macrochelys, J. E. Gray 1856 [Chelydridae]
Macrochelys apalachicolae, Thomas et al. 2014 [Chelydridae]
Macrochelys auffenbergi (Dobie 1968) [Chelydridae]
Macrochelys floridana, Hay 1907 [Testudines]
Macrochelys schmidti (Zangerl 1945) [unclassified species]
Macrochelys stricta (Matthew 1924) [unclassified species]
Macrochelys suwanniensis, Thomas et al. 2014 [Chelydridae]
Macrochelys temminckii (Troost 1835) [Chelydridae]
Macrochemus, Nopcsa 1930 [Tanystropheidae]
Macrochemus bassanii, Nopcsa 1930 [Tanystropheidae]
Macrochile, Loew 1850 [Tanyderidae]
Macrochile baltica, Podenas 1997 [Tanyderidae]
Macrochile hornei, Krzemiński 2013 [Tanyderidae]
Macrochile spectrum, Loew 1850 [Tanyderidae]
Macrochilina, Bayle 1880 [Soleniscidae]
Macrochilina (Sphaerodoma) (Keyes 1889) [Sphaerodomidae]
Macrochilina (Sphaerodoma) avellanoides (de Koninck 1863) [Soleniscidae]
Macrochilina (Sphaerodoma) brevis (White 1881) [Soleniscidae]
Macrochilina (Sphaerodoma) intercalaris (Meek and Worthen 1860) [Soleniscidae]
Macrochilina (Sphaerodoma) primigenia (Conrad 1835) [Sphaerodomidae]
Macrochilina (Sphaerodoma) transitoria, Grabau 1931 [Soleniscidae]
Macrochilina (Sphaerodoma) ventricosa (Goldfuss 1844) [Soleniscidae]
Macrochilina (Sphaerodoma) verisimilis, Reed 1944 [Sphaerodomidae]
Macrochilina acuminata, Mansuy 1914 [Soleniscidae]
Macrochilina acuta (Sowerby 1827) [Soleniscidae]
Macrochilina adpressa (Römer 1843) [Soleniscidae]
Macrochilina altonensis, McChesney 1865 [unclassified species]
Macrochilina arculata (von Schlotheim 1820) [Soleniscidae]
Macrochilina aulakion, R. Mawson et al. 2002 [unclassified species]
Macrochilina avellanoides (de Koninck 1863) [Soleniscidae]
Macrochilina beushauseni, Clarke 1907 [unclassified species]
Macrochilina bohemica, Perner 1903 [Soleniscidae]
Macrochilina brancoi, G.G. Gemmellaro 1889 [Soleniscidae]
Macrochilina brevis (White 1881) [Soleniscidae]
Macrochilina brevispira, Kittl 1894 [Soleniscidae]
Macrochilina buccinoides (G.A. Goldfuss 1844) [Soleniscidae]
Macrochilina bulimina, Lindström 1884 [Meekospiridae]
Macrochilina bulloides, Perner 1907 [Soleniscidae]
Macrochilina cancellata, Lindström 1884 [Soleniscidae]
Macrochilina capillosa, Perner 1903 [Soleniscidae]
Macrochilina chattolina, Heidelberger 2001 [Soleniscidae]
Macrochilina conspicua, de Koninck 1881 [Soleniscidae]
Macrochilina crassior, Perner 1903 [Soleniscidae]
Macrochilina curvilinea (Phillips 1836) [Soleniscidae]
Macrochilina cyclostoma, Whidborne 1891 [Soleniscidae]
Macrochilina danvillensis, Girty 1915 [Meekospiridae]
Macrochilina decheni (E. Holzapfel 1882) [Soleniscidae]
Macrochilina dispar, Perner 1903 [Soleniscidae]
Macrochilina drozdzewski, Heidelberger and Amler 2002 [Soleniscidae]
Macrochilina dunkeri, E. Holzapfel 1882 [unclassified species]
Macrochilina ejecta, Whidborne 1891 [Soleniscidae]
Macrochilina elevata, Whidborne 1891 [Soleniscidae]
Macrochilina elongata (J. Phillips 1841) [Soleniscidae]
Macrochilina evoluta, Perner 1903 [Soleniscidae]
Macrochilina fenestrata, Lindström 1884 [Meekospiridae]
Macrochilina fenestratum, G. Lindström 1884 [unclassified species]
Macrochilina fortior (Perner 1903) [Meekospiridae]
Macrochilina frechi, Spitz 1907 [Soleniscidae]
Macrochilina fusiforme (Frech 1894) [Soleniscidae]
Macrochilina fusoidalis, Tolmachoff 1930 [Soleniscidae]
Macrochilina hebe, J. Hall 1860 [unclassified species]
Macrochilina hermitei, E. Munier-Chalmas 1876 [Elasmonematidae]
Macrochilina hospitalis (Perner 1903) [Soleniscidae]
Macrochilina humilis, Keyes 1888 [Soleniscidae]
Macrochilina imbricata (Sowerby 1827) [Soleniscidae]
Macrochilina inaequistriata (Münster 1841) [Soleniscidae]
Macrochilina intermedia, Perner 1903 [Soleniscidae]
Macrochilina intermedia, de Koninck 1881 [Soleniscidae]
Macrochilina keyesi, R.R. Rowley 1900 [Soleniscidae]
Macrochilina lincta (J. Phillips 1841) [Soleniscidae]
Macrochilina littonanus, Hall 1856 [Strobeidae]
Macrochilina macrostoma, J. Hall 1860 [unclassified species]
Macrochilina meridionalis (Phillips 1841) [Soleniscidae]
Macrochilina minor, de Koninck 1881 [Soleniscidae]
Macrochilina modesta, Girty 1909 [Soleniscidae]
Macrochilina monodontiformis, L. de Koninck 1881 [Soleniscidae]
Macrochilina naticaeformis, Heidelberger 2001 [Soleniscidae]
Macrochilina neglectus, Phillips 1841 [unclassified species]
Macrochilina neritoides (G.A. Goldfuss 1844) [Soleniscidae]
Macrochilina newberryi (R.P. Stevens 1858) [Soleniscidae]
Macrochilina nitens (E. Koken 1889) [Soleniscidae]
Macrochilina orbignyi (Münster 1841) [Soleniscidae]
Macrochilina ornatus, Tassell 1982 [unclassified species]
Macrochilina ovata (F.A. Römer 1850) [Soleniscidae]
Macrochilina ovata rectistriata, Perner 1903 [Soleniscidae]
Macrochilina ovatum (F.A. Römer 1850) [Soleniscidae]
Macrochilina paludinaeformis (Hall 1858) [Soleniscidae]
Macrochilina paludinoides, Kirchner 1915 [unclassified species]
Macrochilina phillipsii (Römer 1843) [Soleniscidae]
Macrochilina piltonensis, Amler and Heidelberger 2003 [Soleniscidae]
Macrochilina polyphemoides, de Koninck 1881 [Meekospiridae]
Macrochilina primigenius, Conrad 1835 [Sphaerodomidae]
Macrochilina priscus, Whitfield 1893 [unclassified species]
Macrochilina ptychitica, Kittl 1894 [Pseudomelaniidae]
Macrochilina pulchella, Whiteaves 1892 [Soleniscidae]
Macrochilina pulchella, Clarke and Swartz 1913 [Soleniscidae]
Macrochilina pusilla, de Koninck 1881 [Soleniscidae]
Macrochilina pygmaea, Clarke 1904 [Soleniscidae]
Macrochilina rara, Perner 1903 [Soleniscidae]
Macrochilina recticosta, Perner 1903 [Soleniscidae]
Macrochilina rectilinea (Phillips 1836) [Soleniscidae]
Macrochilina rectinea (Phillips 1836) [Soleniscidae]
Macrochilina rectineum, J. Phillips 1836 [unclassified species]
Macrochilina rectistriata (Perner 1903) [Soleniscidae]
Macrochilina regularis (Cox 1857) [Soleniscidae]
Macrochilina sandbergeri (Laube 1868) [Soleniscidae]
Macrochilina schlotheimi (d’Archiac and de Verneuil 1842) [Soleniscidae]
Macrochilina seneca, Clarke 1904 [Soleniscidae]
Macrochilina subclathrata (Sandberger 1842) [Plagiothyridae]
Macrochilina subcostata (von Schlotheim 1820) [Soleniscidae]
Macrochilina subimbricata (A.D. d'Orbigny 1850) [Soleniscidae]
Macrochilina sublineata (Münster 1841) [Soleniscidae]
Macrochilina subovata, Heidelberger 2001 [Soleniscidae]
Macrochilina subtilis, Spitz 1907 [Soleniscidae]
Macrochilina symmetrica (King 1844) [Meekospiridae]
Macrochilina tantilla, R.R. Rowley 1900 [Soleniscidae]
Macrochilina tumida, de Koninck 1881 [Soleniscidae]
Macrochilina turbinea, Whidborne 1896 [Soleniscidae]
Macrochilina turrita, Kittl 1899 [Soleniscidae]
Macrochilina ventricosa (Goldfuss 1844) [Soleniscidae]
Macrochilina welleri, Knight 1931 [unclassified species]
Macrochilina whidbornei, Perner 1903 [Soleniscidae]
Macrochilina whidborni, Tolmachoff 1930 [Soleniscidae]
Macrochilina winensis, Dickins 1963 [Soleniscidae]
Macrochilininae, subfamily, Knight 1931 [Soleniscidae]
Macrochilus (J. Phillips 1841) [Soleniscidae]
Macrochilus arculatus (von Schlotheim 1820) [Soleniscidae]
Macrochilus hamiltoniae, J. Hall 1860 [Soleniscidae]
Macrochilus ovatum (F.A. Römer 1850) [Soleniscidae]
Macrochilus ponderosum, Swallow 1858 [Soleniscidae]
Macrochilus striatus, E. d'Eichwald 1860 [Loxonematidae]
Macrochilus subclathratus (Sandberger 1842) [Plagiothyridae]
Macrochirifer, Brandt 1874 [Cetacea]
Macrochirifer brachyspondylus (Brandt 1873) [Cetacea]
Macrochirifer vindobonensis, Brandt 1874 [Cetacea]
Macrochlamis [Pectinidae]
Macrochorobates, G. J. Scillato Yané 1980 [Dasypodidae]
Macrochorobates chapadmalensis, Ameghino 1908 [Dasypodidae]
Macrochorobates scalabrinii (F. P. Moreno and A. Mercerat 1891) [Dasypodidae]
Macroclemys (J. E. Gray 1856) [Chelydridae]
Macroclemys auffenbergi, Dobie 1968 [Chelydridae]
Macroclemys schmidti, Zangerl 1945 [Chelydridae]
Macroclemys temmincki (Troost 1835) [Chelydridae]
Macroclemys temminckii, Troost 1835 [Chelydridae]
Macrocnemidae, family, Kuhn 1946 [unclassified family]
Macrocnemoidea, suborder, Kuhn 1946 [unclassified suborder]
Macrocnemus (Nopcsa 1930) [Tanystropheidae]
Macrocnemus bassanii (Nopcsa 1930) [Tanystropheidae]
Macrocnemus fuyuanensis, Li et al. 2007 [Tanystropheidae]
Macrocnemus obristi, Fraser and Furrer 2013 [Tanystropheidae]
Macrocoelia [Rafinesquinidae]
Macrocoelia champlainensis (Raymond 1902) [Rafinesquinidae]
Macrocoelia concentrica (Portlock 1843) [Rafinesquinidae]
Macrocoelia expansa (de Sowerby and Murchison 1839) [Rafinesquinidae]
Macrocoelia llandeiloensis (Davidson 1871) [Rafinesquinidae]
Macrocoelia macallumi (Reed 1917) [Rafinesquinidae]
Macrocoelia magna (Butts 1942) [Rafinesquinidae]
Macrocoelia prolata, Williams 1963 [Rafinesquinidae]
Macrocoelia rotunda, Cooper 1956 [Rafinesquinidae]
Macrocoelia ruedemanni (Salmon 1942) [Rafinesquinidae]
Macrocollum, Müller et al. 2018 [unclassified genus]
Macrocollum itaquii, Müller et al. 2018 [unclassified species]
Macrocorsinae, subfamily, Vondracek 1963 [Psyllidae]
Macrocranion, Weitzel 1949 [Amphilemuridae]
Macrocranion germonpreae, T. Smith 1997 [Amphilemuridae]
Macrocranion junnei, Smith et al. 2002 [Amphilemuridae]
Macrocranion nitens (Matthew 1918) [Amphilemuridae]
Macrocranion robinsoni, Krishtalka and Setoguchi 1977 [Amphilemuridae]
Macrocranion tenerum, Tobien 1962 [Amphilemuridae]
Macrocranion tupaiodon, Weitzel 1949 [Amphilemuridae]
Macrocranion vandebroeki (Quinet 1964) [Amphilemuridae]
Macrocranum, Jordan 1967 [Lygaeidae]
Macrocranum pliozaeni (Jordan 1967) [Lygaeidae]
Macrocranum pliozani, Jordan 1967 [Lygaeidae]
Macrocrinus, Jaekel 1895 [Monobathrida]
Macrocypraea, Woodring 1957 [Cypraeidae]
Macrocypraea anguillana (Cooke 1919) [Cypraeidae]
Macrocypraea cervus (Linnaeus 1771) [Cypraeidae]
Macrocypraea joanneae, Petuch 2004 [Cypraeidae]
Macrocypraea spengleri (Petuch 1990) [Cypraeidae]
Macrocypraea trinitatensis (Mansfield 1925) [Cypraeidae]
Macrocypraea veintensis, Perrilliat et al. 2003 [Cypraeidae]
Macrocypraea zebra (Linnaeus 1758) [Cypraeidae]
Macrocyprididae, family, Muller 1912 [Podocopida]
Macrocyprina [Myodocopida]
Macrocypris [Macrocyprididae]
Macrocypris datianensis, Yi 1993 [Macrocyprididae]
Macrocypris deducta, Zalanyi 1974 [Macrocyprididae]
Macrocypris garrisonensis, Upson 1933 [Macrocyprididae]
Macrocypris menardensis, Harlton 1929 [Macrocyprididae]
Macrocypris panxianensis, Wang 1978 [Macrocyprididae]
Macrocyproides [Podocopida]
Macrocystella, Callaway 1877 [Glyptocystitida]
Macrocystella azaisi (Thoral 1935) [unclassified species]
Macrocystella bavarica (Barrande 1867) [unclassified species]
Macrocystella bohemica (Barrande 1867) [unclassified species]
Macrocystella bohemicus (Barrande 1867) [unclassified species]
Macrocystella durandi, Aceńolaza 1999 [unclassified species]
Macrocystella greylingi, Hammann and Sdzuy 2001 [unclassified species]
Macrocystella mariae, Callaway 1877 [Glyptocystitida]
Macrocystella obscondita (Barrande 1887) [unclassified species]
Macrocystella pauli, Gil Cid et al. 1996 [unclassified species]
Macrocystella tasseftensis, Chauvel 1969 [unclassified species]
Macrocystellidae, family, Bather 1899 [Glyptocystitida]
Macrodactylini, tribe, Kirby 1837 [Scarabaeidae]
Macrodactylus, Latreille 1827 [Scarabaeidae]
Macrodactylus pluto, Wickham 1912 [Scarabaeidae]
Macrodactylus propheticus, Wickham 1912 [Scarabaeidae]
Macrodasydida [Gastrotricha]
Macrodelphinus, Wilson 1935 [Cetacea]
Macrodelphinus kelloggi, Wilson 1935 [Cetacea]
Macrodelphinus valenciennesii (Brandt 1873) [Cetacea]
Macrodentina [Podocopida]
Macroderma, Miller [Megadermatidae]
Macroderma koppa, Dawson and Augee 1988 [Megadermatidae]
Macrodesma, Isberg 1934 [Cyrtodontidae]
Macrodesma enigma, Kříž 2008 [Cyrtodontidae]
Macrodesma modesta, Isberg 1934 [Cyrtodontidae]
Macrodesma striata, Isberg 1934 [Cyrtodontidae]
Macrodiadema [Diadematoida]
Macrodiceras, Karczewski 1969 [Hippuritida]
Macrodiceras balaklavense (Pcelincev 1959) [Hippuritida]
Macrodiceras kozlowskii, Karczewski 1969 [Hippuritida]
Macrodiceras longum, Karczewski 1969 [Hippuritida]
Macrodiceras magnum, Karczewski 1969 [Hippuritida]
Macrodiceras pcelincevi, Karczewski 1969 [Hippuritida]
Macrodiceras polonicum, Karczewski 1969 [Hippuritida]
Macrodiceras spirale, Karczewski 1969 [Hippuritida]
Macrodictya, Guthörl 1940 [Dictyoneuridae]
Macrodictya stenomediali, Guthörl 1940 [Dictyoneuridae]
Macrodomoceras, Teichert and Glenister 1952 [Polyelasmoceratidae]
Macrodomoceras howitti, Teichert and Glenister 1952 [unclassified species]
Macrodon, Buckman 1882 [Parallelodontidae]
Macrodon (Catella) (Healey 1908) [Parallelodontidae]
Macrodon (Catella) tyaughtonae, McLearn 1942 [Parallelodontidae]
Macrodon asperula, Dall 1881 [Arcidae]
Macrodon cainozoicus, Tate 1886 [Parallelodontidae]
Macrodon comptus, Gemmellaro 1896 [Parallelodontidae]
Macrodon egertonianum, Stoliczka 1865 [Parallelodontidae]
Macrodon geminum, Waagen 1881 [Parallelodontidae]
Macrodon latisinuatus, Gemmellaro 1896 [Parallelodontidae]
Macrodon multilamellatus, Gemmellaro 1896 [Parallelodontidae]
Macrodon obsoletus, Meek 1871 [Parallelodontidae]
Macrodon rufae, Dacque 1905 [Parallelodontidae]
Macrodon rugosus, Buckman 1845 [Parallelodontidae]
Macrodon sangamonensis, Worthen 1890 [Parallelodontidae]
Macrodon striata (von Schlotheim 1816) [Parallelodontidae]
Macrodon strigilatum (Munster 1838) [Parallelodontidae]
Macrodon tenuistriatus, Meek and Worthen 1866 [Parallelodontidae]
Macrodon whitei, Gemmellaro 1896 [Parallelodontidae]
Macrodonax [Cardiida]
Macrodontacanthus, Romer 1942 [Chondrichthyes]
Macrodontacanthus kingi, Romer 1942 [Chondrichthyes]
Macrodontella [Arcida]
Macrodontophion, A. Zborzewski 1834 [Antiarcha]
Macrodontopteryx, Harrison and Walker 1976 [Pelagornithidae]
Macrodontopteryx oweni, Harrison and Walker 1976 [Pelagornithidae]
Macrodostomia [Heterostrophia]
Macroechinus, Satunin 1907 [Erinaceidae]
Macroedischia, Sharov 1968 [Tettoedischiidae]
Macroedischia elongata, Sharov 1968 [Tettoedischiidae]
Macroelongatoolithidae, family, Wang and Zhou 1995 [unclassified family]
Macroelongatoolithus, Li et al. 1995 [Elongatoolithidae]
Macroelongatoolithus carlylei (Jensen 1970) [Elongatoolithidae]
Macroelongatoolithus xixiaensis, Li et al. 1995 [Elongatoolithidae]
Macroelongatoolithus zhangi, Fang et al. 2000 [Elongatoolithidae]
Macroeuphractus, F. Ameghino 1887 [Dasypodidae]
Macroeuphractus retusus, F. Ameghino 1887 [Dasypodidae]
Macrogalidia, Schwarz 1910 [Viverridae]
Macrogalidia musschenbroecki (Schlegel 1879) [Viverridae]
Macrogastri, family, Latreille 1802 [Coleoptera]
Macrogenis, Wright 1993 [Tayassuidae]
Macrogenis crassigenis (Matthew and Gidley 1904) [Tayassuidae]
Macrogenis crassigensis (Matthew and Gidley 1904) [unclassified species]
Macroglossum (F. Cuvier 1824) [Vespertilionidae]
Macroglossus, F. Cuvier 1824 [Vespertilionidae]
Macrognathomys, Hall 1930 [Zapodidae]
Macrognathomys gemmacolis, Green 1977 [Zapodidae]
Macrognathomys nanus, Hall 1930 [Zapodidae]
Macrogrammites, Buckman 1928 [Schlotheimiidae]
Macrogrammus, Whittard 1966 [Pilekiidae]
Macrogrammus pengi, Edgecombe et al. 1999 [Pilekiidae]
Macrogrammus rafi, Edgecombe et al. 1999 [Pilekiidae]
Macrogryphosaurus, Calvo et al. 2007 [Reptilia]
Macrogryphosaurus gondwanicus, Calvo et al. 2007 [Reptilia]
Macrogyion, Garwood et al. 2011 [Opiliones]
Macrogyion cronus, Garwood et al. 2011 [Opiliones]
Macroheterocera, Chapman 1893 [Lepidoptera]
Macrokentriodon, Dawson 1996 [Kentriodontidae]
Macrokentriodon morani, Dawson 1996 [Kentriodontidae]
Macrolepidoptera [Lepidoptera]
Macroleptura, Nakane and Ohbayashi 1957 [Cerambycidae]
Macroleptura petrorum (Statz 1938) [Cerambycidae]
Macroleter, Tverdokhlebova and Ivakhnenko 1984 [Nycteroleteridae]
Macroleter agilis (E. C. Olson 1980) [Nycteroleteridae]
Macroleter poezicus, Tverdokhlebova and Ivakhnenko 1984 [Nycteroleteridae]
Macrolinini, tribe, Kaup 1871 [Passalidae]
Macrolinus, Kaup 1868 [Passalidae]
Macrolinus sinicus (Hong 1983) [Passalidae]
Macroloxoceras, Flower 1957 [Pseudorthoceratidae]
Macromastix, Osten-Sacken 1886 [Tipulidae]
Macromastix bornhardti, Meunier 1917 [Tipulidae]
Macromastix cladoptera, Cockerell and Haines 1921 [Tipulidae]
Macromaxillocarididae, family, Alvarez 2006 [Decapoda]
Macromedaeus, Ward 1942 [Xanthidae]
Macromedaeus distinguendus, De Haan 1835 [Xanthidae]
Macromerion, Fritsch 1879 [Sphenacodontidae]
Macromerion juvenile, Fritsch 1885 [unclassified species]
Macromerion schwartzenbergii, Romer 1945 [Sphenacodontidae]
Macromerium, Lydekker 1890 [unclassified genus]
Macromerium bayeri, Fritsch 1875 [unclassified species]
Macromerium schwarzenbergii, Fritsch 1875 [unclassified species]
Macromerium scoticum, Lydekker 1890 [Crassigyrinidae]
Macromerosauro, Curioni 1863 [Nothosauridae]
Macromerosaurus, Cornalia 1854 [Nothosauridae]
Macromerus, A. Smith 1833 [Indriidae]
Macromesodon, Blake 1905 [Pycnodontidae]
Macromia, Rambur 1842 [Corduliidae]
Macromia amphigena, Selys 1871 [Corduliidae]
Macromia pilifera (Lin 1982) [Corduliidae]
Macromiidae, subfamily (Tillyard 1917) [Corduliidae]
Macromiidae, family (Tillyard 1917) [Corduliidae]
Macromiinae, subfamily, Tillyard 1917 [Corduliidae]
Macromirosaurus, Curioni 1847 [Nothosauridae]
Macromirosaurus plini, Curioni 1847 [Nothosauridae]
Macromirosaurus plinii (Curioni 1847) [Nothosauridae]
Macromischa, Roger 1863 [Formicidae]
Macromischa beyrichi, Mayr 1868 [Formicidae]
Macromischa petiolata, Mayr 1868 [Formicidae]
Macromischa prisca, André 1895 [Formicidae]
Macromischa rudis, Mayr 1868 [Formicidae]
Macromischa rugosostriata, Mayr 1868 [Formicidae]
Macromphalina, Cossmann 1888 [Tornidae]
Macromphalina hanseni, Ward and Blackwelder 1987 [Tornidae]
Macromphalus, S. W. Wood 1842 [Vanikoridae]
Macromphalus (Dialytostoma) (Cossmann 1888) [Vanikoridae]
Macromphalus (Dialytostoma) fischeri (de Laubričre 1881) [Vanikoridae]
Macromphalus fischeri (de Laubričre 1881) [Vanikoridae]
Macromphalus imacampensis, Lozouet 1998 [Vanikoridae]
Macromphalus reticulatus, S. W. Wood 1842 [Vanikoridae]
Macron, H. Adams and A. A 1853 [Pseudolividae]
Macron hartmanni, Hertlein and Jordan 1927 [Pseudolividae]
Macron vermeiji, Nielsen and Frassinetti 2003 [Pseudolividae]
Macronaria, Sereno 1997 [Reptilia]
Macronectes, Richmond 1905 [unclassified genus]
Macronectes giganteus (Gmelin 1789) [unclassified species]
Macronectes halli, Mathews 1912 [unclassified species]
Macronema, Pictet 1836 [Hydropsychidae]
Macronema hispaniola, Wichard 2007 [Hydropsychidae]
Macronema zebrata, Hagen 1861 [Hydropsychidae]
Macronematinae, subfamily, Ulmer 1905 [Hydropsychidae]
Macroniscus, Thiele 1928 [Pseudolividae]
Macronoda, Lochmann 1964 [Ptychaspididae]
Macronota, Hoffmansegg 1817 [Scarabaeidae]
Macronota shandongiana, Zhang 1989 [Scarabaeidae]
Macronotella, Ulrich 1894 [Aparchitidae]
Macronotella praelonga (Steusloff 1894) [unclassified species]
Macronotella scofieldi, Ulrich 1894 [unclassified species]
Macronotus, Hong and Wang 1990 [Buprestidae]
Macronotus tuanwangensis, Hong and Wang 1990 [Buprestidae]
Macronychidae, family, Gistel 1848 [Elmidae]
Macronychini, tribe (Gistel 1848) [Elmidae]
Macronychoptera, Unwin 2003 [Reptilia]
Macronychus, Muller 1806 [Elmidae]
Macronychus quadrituberculatus, Muller 1806 [Elmidae]
Macronympha, Panfilov 1980 [Mesochrysopidae]
Macronympha elegans, Panfilov 1980 [Mesochrysopidae]
Macroolithus, Zhao 1975 [Elongatoolithidae]
Macroolithus mutabilis, K. E. Mikhailov 1994 [Elongatoolithidae]
Macroolithus rugustus (Young 1965) [Elongatoolithidae]
Macroolithus turolensis, Amo Sanjuán et al. 2000 [Elongatoolithidae]
Macroolithus yaotunensis, Zhao 1975 [Elongatoolithidae]
Macropalpus, Pictet 1854 [Hemerobiidae]
Macropalpus elegans, Pictet 1854 [Hemerobiidae]
Macropelobates, Noble 1924 [Pelobatidae]
Macropelobates osborni, Noble 1924 [Pelobatidae]
Macropelopia, Thienemann 1916 [Chironomidae]
Macropelopiini, tribe, Zavrel 1929 [Chironomidae]
Macropenaeus, Garassino 1994 [Decapoda]
Macropenaeus incertus, Roger 1946 [Decapoda]
Macropetalichthyida, order [Petalichthyida]
Macropetalichthyidae, family, Eastman 1898 [Macropetalichthyida]
Macropetalichthys, Norwood and Owen 1846 [Macropetalichthyida]
Macropeza, Meigen 1818 [Ceratopogonidae]
Macropeza liasina, Geinitz 1884 [Protopleciidae]
Macropeza prisca, Giebel 1856 [Diptera]
Macrophalangia, Sternberg 1932 [Caenagnathidae]
Macrophalangia canadensis, Sternberg 1932 [Caenagnathidae]
Macropharyngodon, Bleeker 1862 [unclassified genus]
Macrophlebium, Goldenberg 1869 [Protorthoptera]
Macrophlebium hollebeni, Goldenberg 1869 [Protorthoptera]
Macrophoca, Leidy 1856 [Squalodontidae]
Macrophoca atlantica, Leidy 1856 [Squalodontidae]
Macrophon, Ivakhnenko 1975 [Procolophonidae]
Macrophon komiensis, Ivakhnenko 1975 [Procolophonidae]
Macrophragma (Carpenter 1857) [Vermetidae]
Macrophthalmidae, family, Dana 1851 [Decapoda]
Macrophthalminae, subfamily, Dana 1851 [Macrophthalmidae]
Macrophthalmus, Latreille 1823 [Macrophthalmidae]
Macrophthalmus (Mareotis), Barnes 1967 [Macrophthalmidae]
Macrophthalmus (Mareotis) wilfordi, Morris and Collins 1991 [Macrophthalmidae]
Macrophthalmus aquensis, A. Milne-Edwards and Brocchi 1879 [Macrophthalmidae]
Macrophthalmus depressus, Ruppell 1830 [Macrophthalmidae]
Macrophthalmus granulosus, J. G. de Man 1904 [Macrophthalmidae]
Macrophthalmus japonicus, De Haan 1835 [Macrophthalmidae]
Macrophthalmus latifrons, Haswell 1882 [Macrophthalmidae]
Macrophthalmus latreillei, Desmarest 1822 [Macrophthalmidae]
Macrophthalmus leptophthalmus, H. Milne-Edwards 1852 [Macrophthalmidae]
Macrophthalmus serratus, Adams and White 1848 [Macrophthalmidae]
Macrophthalmus setosus, H. Milne-Edwards 1852 [Macrophthalmidae]
Macrophthalmus viai, Karasawa and Inoue 1992 [Macrophthalmidae]
Macrophya, Dahlbom 1835 [Tenthredinidae]
Macrophya adventitia, Lewis 1969 [Tenthredinidae]
Macrophya pervetusta, Brues 1908 [Tenthredinidae]
Macrophylloceras [Phylloceratidae]
Macrophylloceras ptychostoma (Benecke 1865) [Phylloceratidae]
Macropidae, family (Gray 1821) [Diprotodontia]
Macropidinae, subfamily, Sagemehl 1882 [Melittidae]
Macropidini, tribe, Robertson 1904 [Melittidae]
Macropina, tribe, Gray 1825 [Diprotodontia]
Macropina, family (Gray 1825) [Diprotodontia]
Macropipidae, family, W. Stephenson and B. Campbell 1960 [Decapoda]
Macropipus, Prestandrea 1833 [Macropipidae]
Macropipus gruneri, Bachmayer and Rutsch 1962 [Macropipidae]
Macropipus ovalipes, Secretan 1975 [Macropipidae]
Macropipus tuberculatus, Roux 1828 [Macropipidae]
Macropis, Panzer 1809 [Melittidae]
Macropis basaltica (Zhang 1989) [Melittidae]
Macroplacidae, family, Rieppel 2000 [unclassified family]
Macroplacus, Schubert and Klempnauer 1975 [Placodontia]
Macroplacus raeticus, Schubert and Klempnauer 1975 [Placodontia]
Macroplata, Swinton 1930 [Rhomaleosauridae]
Macroplata longirostris (Tate and Blake 1876) [Pliosauridae]
Macroplata tenuiceps, Swinton 1930 [Rhomaleosauridae]
Macroplea, Samouelle 1819 [Chrysomelidae]
Macroplea appendiculata (Panzer 1794) [Chrysomelidae]
Macropleura, Boucot 1963 [Cyrtiidae]
Macropneustes, L. Agassiz 1847 [Brissidae]
Macropneustes cubensis, Cotteau 1875 [Brissidae]
Macropneustes decipiens (Tate 1891) [Brissidae]
Macropneustidae, family, Lambert 1905 [Spatangoida]
Macropoda, family, Illiger 1811 [Prensiculantia]
Macropodaphidinae, subfamily, Zachvatkin and Aizenberg 1960 [Aphididae]
Macropodaphidini, tribe [Aphididae]
Macropodia, Leach 1814 [Inachidae]
Macropodia trigonus, Richer de Forges 1993 [Inachidae]
Macropodidae, family, Gray 1821 [Diprotodontia]
Macropodinae, subfamily, Gray 1821 [Macropodidae]
Macropodoidea, superfamily, Gray 1821 [Diprotodontia]
Macropodosauropus, Dzhalilov and Novikov 1993 [Segnosauripodidae]
Macropodosauropus gravis (Zakharov 1964) [Reptilia]
Macropodosaurus, Zakharov 1964 [Reptilia]
Macropodosaurus gravis, Zakharov 1964 [Reptilia]
Macropodosaurus qravis (Zakharov 1964) [Reptilia]
Macropoma, Agassiz 1843 [Coelacanthidae]
Macropoma lewesiensis, Mantell 1822 [Coelacanthidae]
Macropoma mantelli, L. Agassiz 1843 [Coelacanthidae]
Macropoma precursor, Woodward 1909 [Coelacanthidae]
Macropoma speciosum, Reuss 1857 [Coelacanthidae]
Macropoma willemoesii, Vetter 1881 [Coelacanthidae]
Macropomoides, Woodward 1942 [Latimeriidae]
Macropomoides orientalis, Woodward 1942 [Latimeriidae]
Macropora [Macroporidae]
Macropora clarkei (Tenison-Woods 1877) [Macroporidae]
Macropora clarkei attenuata, Canu and Bassler 1935 [Macroporidae]
Macropora crassatina (Waters 1882) [Macroporidae]
Macropora cribrilifera, Maplestone 1901 [Macroporidae]
Macropora grandis (Hutton 1873) [Macroporidae]
Macropora grandis levinseni, Brown 1952 [Macroporidae]
Macropora quadriseriata, Canu and Bassler 1935 [Macroporidae]
Macroporaster, Raymond 1921 [Hudsonasteridae]
Macroporella [Dasycladaceae]
Macroporella affinis, Endo 1969 [Dasycladaceae]
Macroporella verticillata, Pia 1940 [Dasycladaceae]
Macroporidae, family, Uttley 1949 [Cheilostomata]
Macroporina [Macroporidae]
Macroporina waimatukuensis, Uttley 1949 [Macroporidae]
Macropotamorhynchus [Trigonirhynchiidae]
Macropristis, Ameghino 1889 [unclassified genus]
Macroprotodon, Guichenot 1850 [Colubridae]
Macropsinae, subfamily, Evans 1935 [Cicadellidae]
Macropsini, tribe, Evans 1935 [Cicadellidae]
Macropsis, Lewis 1834 [Jassidae]
Macropsis pectoralis, Statz 1950 [Jassidae]
Macropsontus, Silvestri 1911 [Meinertellidae]
Macroptera, Laurentiaux 1949 [Lithomanteidae]
Macroptera fariai (Laurentiaux and Teixeira 1958) [Lithomanteidae]
Macroptera greberi, Laurentiaux 1949 [Lithomanteidae]
Macroptercoris (Bode 1953) [Archegocimicidae]
Macropteridae, family, Laurentiaux 1949 [Palaeodictyoptera]
Macropterna, Hitchcock 1848 [Batrachopodidae]
Macropterna divaricans, Hitchcock 1848 [Batrachopodidae]
Macropterna gracilipes, Hitchcock 1858 [Batrachopodidae]
Macropterna recta, Hitchcock 1848 [Batrachopodidae]
Macropterna rhynchosauroidea, Hitchcock 1848 [Batrachopodidae]
Macropterna vulgaris, Hitchcock 1858 [Batrachopodidae]
Macropterocoris, Bode 1953 [Archegocimicidae]
Macropterocoris obtusus, Bode 1953 [Archegocimicidae]
Macropterygidae, family, Lambrecht 1933 [unclassified family]
Macropterygius, Huene 1922 [Ichthyopterygia]
Macropterygius dilatatus (Phillips 1871) [Ichthyopterygia]
Macropterygius incognitus, Rusconi 1948 [Ichthyopterygia]
Macropterygius ovalis (Phillips 1871) [Ichthyopterygia]
Macropterygius posthumus, Barthel 1990 [Ophthalmosauridae]
Macropterygius thyreospondylus (Owen 1840) [Ichthyopterygia]
Macropterygius trigonus (Owen 1840) [Ophthalmosauridae]
Macropteryx, Hong 1976 [Trichoptera]
Macropteryx, Swainson 1831 [unclassified genus]
Macropteryx spodiopygius, Peale 1848 [unclassified species]
Macropteryx xiaoshetaiensis, Hong 1976 [Trichoptera]
Macropthalmia, Plate 1897 [Geotriidae]
Macropthalmus, Karasawa 1993 [Macrophthalmidae]
Macroptilium, Bentham 1928 [unclassified genus]
Macropunctum, Tröster 1991 [Elateridae]
Macropunctum angulosum, Tröster 1999 [Elateridae]
Macropunctum angulosum, Tröster 1999 [Elateridae]
Macropunctum angustiscutellum, Tröster 1994 [Elateridae]
Macropunctum densipunctum, Wappler 2003 [Elateridae]
Macropunctum eckfeldi, Tröster 1992 [Elateridae]
Macropunctum eocaenicum (Meunier 1921) [Elateridae]
Macropunctum latiscutellum, Tröster 1994 [Elateridae]
Macropunctum messelense (Tröster 1991) [Elateridae]
Macropunctum messelensis, Tröster 1991 [Elateridae]
Macropunctum meunieri, Tröster 1991 [Elateridae]
Macropunctum minutum (Meunier 1921) [Elateridae]
Macropunctum promptum (Meunier 1921) [Elateridae]
Macropunctum rebugense, Tröster 1994 [Elateridae]
Macropunctum senckenbergi, Tröster 1994 [Elateridae]
Macropus, Shaw 1790 [Macropodidae]
Macropus (Fissuridon) (Bartholomai 1971) [Macropodidae]
Macropus (Halmaturus) (Illiger 1811) [Macropodidae]
Macropus (Halmaturus) greyi, Waterhouse 1846 [Macropodidae]
Macropus (Halmaturus) parma, Waterhouse 1846 [Macropodidae]
Macropus (Halmaturus) wombeyensis, Broom 1896 [Macropodidae]
Macropus (Leptosaigon) (Owen 1874) [Macropodidae]
Macropus (Leptosaigon) gracilis, Owen 1874 [Macropodidae]
Macropus (Macropus), Shaw 1790 [Macropodidae]
Macropus (Macropus) ferragus (Owen 1874) [Macropodidae]
Macropus (Macropus) fuliginosus (Desmarest 1817) [Macropodidae]
Macropus (Macropus) giganteus (Shaw 1790) [Macropodidae]
Macropus (Macropus) mundjabus (Flannery 1980) [Macropodidae]
Macropus (Macropus) pan (De Vis 1895) [Macropodidae]
Macropus (Macropus) pearsoni (Bartholomai 1971) [Macropodidae]
Macropus (Macropus) rama, Bartholomai 1975 [Macropodidae]
Macropus (Notamacropus), Dawson and Flannery 1985 [Macropodidae]
Macropus (Notamacropus) agilis (Gould 1842) [Macropodidae]
Macropus (Notamacropus) agilis siva (De Vis 1895) [Macropodidae]
Macropus (Notamacropus) dorsalis (Gray 1837) [Macropodidae]
Macropus (Notamacropus) eugenii (Desmarest 1817) [Macropodidae]
Macropus (Notamacropus) greyi (Waterhouse 1846) [Macropodidae]
Macropus (Notamacropus) irma (Jourdan 1837) [Macropodidae]
Macropus (Notamacropus) parma (Waterhouse 1846) [Macropodidae]
Macropus (Notamacropus) parryi (Bennett 1835) [Macropodidae]
Macropus (Notamacropus) rufogriseus (Desmarest 1817) [Macropodidae]
Macropus (Notamacropus) thor (De Vis 1895) [Macropodidae]
Macropus (Notamacropus) wombeyensis (Broom 1896) [Macropodidae]
Macropus (Osphranter) (Gould 1842) [Macropodidae]
Macropus (Osphranter) antilopinus (Gould 1842) [Macropodidae]
Macropus (Osphranter) bernardus (Rothschild 1904) [Macropodidae]
Macropus (Osphranter) pavana, Bartholomai 1978 [Macropodidae]
Macropus (Osphranter) robustus (Gould 1841) [Macropodidae]
Macropus (Osphranter) robustus altus (Owen 1874) [Macropodidae]
Macropus (Osphranter) rufus (Desmarest 1822) [Macropodidae]
Macropus (Osphranter) woodsi, Bartholomai 1975 [Macropodidae]
Macropus (Petrogale) (Gray 1837) [Macropodidae]
Macropus (Petrogale) robustus, Gould 1841 [Macropodidae]
Macropus (Prionotemnus) (Stirton 1955) [Macropodidae]
Macropus (Prionotemnus) narada, Bartholomai 1978 [Macropodidae]
Macropus affinis, Owen 1845 [Macropodidae]
Macropus agilis (Gould 1842) [Macropodidae]
Macropus altus (Owen 1874) [Macropodidae]
Macropus anak, Owen 1859 [Macropodidae]
Macropus atlas, Owen 1838 [Macropodidae]
Macropus bernardus, Rothschild 1904 [Macropodidae]
Macropus birdsellii, Tedford 1967 [Macropodidae]
Macropus brehus (Owen 1874) [Macropodidae]
Macropus cooperi (Owen 1874) [Macropodidae]
Macropus dryas (De Vis 1895) [Macropodidae]
Macropus elegans, Lambert 1807 [Macropodidae]
Macropus faunus, De Vis 1895 [Macropodidae]
Macropus ferragus (Owen 1874) [Macropodidae]
Macropus giganteus, Shaw 1790 [Macropodidae]
Macropus goliah, Owen 1874 [Macropodidae]
Macropus magister, De Vis 1895 [Macropodidae]
Macropus mimas (Owen 1874) [Macropodidae]
Macropus minor (Owen 1877) [Macropodidae]
Macropus mundjabus, Flannery 1980 [Macropodidae]
Macropus narada (Bartholomai 1978) [Macropodidae]
Macropus pan, De Vis 1895 [Macropodidae]
Macropus parryi, Bennett 1835 [Macropodidae]
Macropus pearsoni (Bartholomai 1971) [Macropodidae]
Macropus piltonensis, Bartholomai 1975 [Macropodidae]
Macropus raechus (Owen 1874) [Macropodidae]
Macropus rama (Bartholomai 1975) [Macropodidae]
Macropus robustus (Gould 1841) [Macropodidae]
Macropus rufus (Desmarest 1822) [Macropodidae]
Macropus titan, Owen 1838 [Macropodidae]
Macropus unguifer, Gould 1841 [Macropodidae]
Macropus woodsi (Bartholomai 1975) [Macropodidae]
Macropyge, Stubblefield 1927 [Ceratopygidae]
Macropyge (Promacropyge) (Lu 1964) [Ceratopygidae]
Macropyge (Promacropyge) carinata (Lu 1964) [Ceratopygidae]
Macropyge (Promacropyge) linearis, Peng 1992 [Ceratopygidae]
Macropyge gladiator, Ross 1951 [Ceratopygidae]
Macropygella, Rosov and Dubatolova 1985 [Asaphida]
Macropygia, Swainson 1837 [unclassified genus]
Macropygia amboinensis (Linnaeus 1766) [unclassified species]
Macropygia arevarevauupa, Steadman 1992 [unclassified species]
Macropygia mackinlayi, Ramsay 1878 [unclassified species]
Macropygia nigrirostris, Salvadori 1876 [unclassified species]
Macrora, Hanna 1932 [Bacillariophyta]
Macrorhamphosidae, family [Actinopteri]
Macrorhamphosidarum, Bleeker 1879 [unclassified genus]
Macrorhamphosidarum testuliformis, Schwarzhans 2007 [unclassified species]
Macrorhineura, Macdonald 1970 [Rhineuridae]
Macrorhineura skinneri, Macdonald 1970 [Rhineuridae]
Macrorhinus, F. Cuvier 1824 [Phocidae]
Macrorhinus angustirostris (Gill 1866) [Phocidae]
Macrorhinus leonina (Linnaeus 1758) [Phocidae]
Macrorhinus leoninus (Linnaeus 1758) [Phocidae]
Macrorhizodus, Glükman 1964 [Lamiostomatidae]
Macrorhizodus falcata (Rogovich 1860) [Lamiostomatidae]
Macrorhoptus, Leconte 1876 [Curculionidae]
Macrorhoptus intutus, Scudder 1893 [Curculionidae]
Macrorhyna, J. E. Gray 1827 [Phocidae]
Macrorhynchidae, family, Koken 1887 [unclassified family]
Macrorhynchus, Dunker 1843 [unclassified genus]
Macrorhynchus meyeri, Dunker 1843 [Reptilia]
Macrornis, Seeley 1866 [unclassified genus]
Macrornis tanaupus, Seeley 1866 [unclassified species]
Macrosarisa [Podocopida]
Macrosaurus, Owen 1849 [Mosasauridae]
Macrosaurus impar (Leidy 1856) [Mosasauridae]
Macrosaurus laevis, Owen 1849 [Mosasauridae]
Macrosaurus platyspondylus, O. C. Marsh 1869 [Mosasauridae]
Macrosaurus proriger, Cope 1869 [Mosasauridae]
Macrosaurus validus (Cope 1868) [Mosasauridae]
Macroscaphites, Meek 1876 [Macroscaphitidae]
Macroscaphites (Costidiscus) (Uhlig 1883) [Macroscaphitidae]
Macroscaphites (Costidiscus) recticostatus (d'Orbigny 1840) [Macroscaphitidae]
Macroscaphites (Macroscaphites), Meek 1876 [Macroscaphitidae]
Macroscaphites (Macroscaphites) yuani (Puzos 1831) [Macroscaphitidae]
Macroscaphites perforatus, Avram 1984 [Macroscaphitidae]
Macroscaphites platydorsatus, Scott 1924 [Scaphitidae]
Macroscaphites soaresi (Da Silva 1962) [Macroscaphitidae]
Macroscaphites striatisulcatus, d'Orbigny 1841 [Macroscaphitidae]
Macroscaphites yuani (Puzos 1831) [Macroscaphitidae]
Macroscaphites yvani (Puzos 1831) [Macroscaphitidae]
Macroscaphitidae, family, Hyatt 1900 [Cephalopoda]
Macroscelesauridae, family, Haughton 1924 [unclassified family]
Macroscelidea, order, Butler 1956 [Mammalia]
Macroscelidea, suborder (Butler 1956) [Mammalia]
Macroscelidea (Butler 1956) [Mammalia]
Macroscelides, A. Smith [Macroscelididae]
Macroscelides pulcher, Thomas 1894 [Macroscelididae]
Macroscelididae, family, C. L. Bonaparte 1838 [Macroscelidea]
Macroscelidinae, subfamily [Macroscelididae]
Macroscelidini, tribe, Bonaparte 1838 [Macroscelididae]
Macroscelis, Fischer 1830 [Macroscelididae]
Macroscelosaurus, Münster 1852 [unclassified genus]
Macroscenella, Wilson 1951 [Archaeophialidae]
Macroscenella superba (Billings 1865) [Archaeophialidae]
Macroschisma, Sowerby 1839 [Fissurellidae]
Macroschisma (Dolichoschisma) (Iredale 1940) [Fissurellidae]
Macroschisma (Forolepas) (Iredale 1940) [Fissurellidae]
Macroschisma (Macroschisma), Sowerby 1829 [Fissurellidae]
Macroschisma bakiei, Adams 1862 [Fissurellidae]
Macroschisma hiatula, Swainson 1840 [Fissurellidae]
Macroschisma madreporaria, Hedley 1907 [Fissurellidae]
Macroschisma munita, Iredale 1940 [Fissurellidae]
Macroschisma proctuca, A. Adams 1850 [Fissurellidae]
Macrosemiidae, family, Thiolličre 1858 [Semionotiformes]
Macrosemiiformes, order [Actinopteri]
Macrosemimimus, Schroder et al. 2012 [Callipurbeckiidae]
Macrosemiocotzus, González-Rodríguez et al. 2004 [Macrosemiidae]
Macrosemiocotzus americanus, González-Rodríguez et al. 2004 [Macrosemiidae]
Macrosemius, Agassiz 1843 [Macrosemiidae]
Macrosemius andrewsi, A. S. Woodward 1895 [Macrosemiidae]
Macrosemius dumortieri (V. Thiolličre 1873) [Macrosemiidae]
Macrosemius fourneti (V. Thiolličre 1854) [Macrosemiidae]
Macrosemius pectoralis, H. E. Sauvage 1883 [Macrosemiidae]
Macrosemius rostratus, Agassiz 1844 [Macrosemiidae]
Macrosiagon, Hentz 1830 [Ripiphoridae]
Macrosiagon deuvei, Batelka et al. 2006 [Ripiphoridae]
Macrosiagon ebboi, Perrichot et al. 2004 [Ripiphoridae]
Macrosiagon geikei (Scudder 1890) [Ripiphoridae]
Macrosiagonini, tribe, von Heyden 1908 [Ripiphoridae]
Macrosinus [Neogastropoda]
Macrosiphinae, subfamily (Wilson 1910) [Aphididae]
Macrosiphini, tribe, Wilson 1910 [Aphididae]
Macrosolen [Cardiida]
Macrosolen cyclopeus (Brongniart 1823) [Cardiida]
Macrosphenidae, family, Wolters 1983 [unclassified family]
Macrospondylus, Meyer 1830 [Reptilia]
Macrospondylus jaegeri, Gibbel 1847 [Teleosauridae]
Macrosqualodelphis, Bianucci et al. 2018 [unclassified genus]
Macrosqualodelphis ukupachai, Bianucci et al. 2018 [unclassified species]
Macrostoma, Agassiz 1842 [unclassified genus]
Macrostoma altum, Agassiz 1842 [Macrostoma]
Macrostomata, Ritgen 1828 [Squamata]
Macrostomata, infraorder (Ritgen 1828) [Squamata]
Macrostomias, Brauer 1902 [Stomiidae]
Macrostrombus (Petuch 1994) [Strombidae]
Macrostrombus costatus (Gmelin 1791) [Strombidae]
Macrostylocrinus [Patelliocrinidae]
Macrostylocrinus wyomingensis, Kolata 1976 [Patelliocrinidae]
Macrotarrhus, Bedel 1906 [Curculionidae]
Macrotarrhus concinnus (Boheman 1842) [Curculionidae]
Macrotarrhusina, subtribe, Legalov 2007 [Curculionidae]
Macrotarsi, family, Illiger 1811 [Pollicata]
Macrotarsiini, tribe [Omomyidae]
Macrotarsius, Clark 1941 [Omomyidae]
Macrotarsius jepseni (Robinson 1968) [Omomyidae]
Macrotarsius macrorhysis, Beard et al. 1994 [Omomyidae]
Macrotarsius montanus, Clark 1941 [Omomyidae]
Macrotarsius roederi, Kelly 1990 [Omomyidae]
Macrotarsius siegerti, Robinson 1968 [Omomyidae]
Macrotarsomys, Milne-Edwards and Grandidier 1898 [Nesomyidae]
Macrotarsus, Link 1795 [Tarsiidae]
Macrotarsus buffonii, Link 1795 [Tarsiidae]
Macroteiida, order, Conrad 2008 [Squamata]
Macroteleia, Westwood 1835 [Scelionidae]
Macroteleia renatae, Szabó and Oehlke 1986 [Scelionidae]
Macroteleia veterna, Cockerell 1921 [Scelionidae]
Macroteleia yaguarum, Perrichot and Engel 2014 [Scelionidae]
Macrotermes, Holmgren 1910 [Termitidae]
Macrotermes amicus (von Rosen 1913) [Termitidae]
Macrotermes pristinus (Charpentier 1843) [Termitidae]
Macrotermes scheuthlei (Armbruster 1941) [Termitidae]
Macrotermitinae, subfamily, Kemner 1934 [Termitidae]
Macroterolichas, Phleger 1937 [unclassified genus]
Macrotettigarcta, Chen and Wang 2016 [Tettigarctidae]
Macrotettigarcta obesa, Chen and Wang 2016 [Tettigarctidae]
Macrotheca, Waagen 1880 [Toxeumorphorida]
Macrotheca almgreeni, Peel and Yochelson 1984 [Toxeumorphorida]
Macrotheca wynnei, Waagen 1880 [Toxeumorphorida]
Macrotheriinae, subfamily, Holland and Peterson 1913 [Chalicotheriidae]
Macrotherium, Lartet 1837 [Chalicotheriidae]
Macrotherium matthewi (Holland and Peterson 1913) [Chalicotheriidae]
Macrotherium merriami (Holland and Peterson 1913) [Chalicotheriidae]
Macrothorax, Jaennicke 1867 [Tipulidae]
Macrothyraspinae, subfamily, Pan 1992 [Huananaspidae]
Macrothyraspis, Pan 1992 [Huananaspidae]
Macrothyraspis longicornis, Pan 1992 [Huananaspidae]
Macrothyraspis longilanceus, Wang et al. 2005 [Huananaspidae]
Macrotis (Reid 1837) [Peramelina]
Macrotis lagotis (Reid 1837) [Peramelina]
Macrotoma, Bourlet 1839 [unclassified genus]
Macrotoma minor, Lubbock 1862 [Tomoceridae]
Macrotomini, tribe, Thomson 1861 [Cerambycidae]
Macrotoxus, Lorenz 1906 [Asaphida]
Macrotrachelites, Bode 1953 [Coleoptera]
Macrotrachelites longus, Bode 1953 [Coleoptera]
Macrotrachelus, Giebel 1852 [unclassified genus]
Macrotrigonia, Camacho and Olivero 1985 [Trigoniida]
Macrotubus, Fois and Gaetani 1981 [unclassified genus]
Macrotus, Gray 1843 [Phyllostomatidae]
Macrouridae, family, Jordan and Evermann 1898 [Gadiformes]
Macrourinae, subfamily, Bonaparte 1832 [unclassified subfamily]
Macrourogaleus, Fowler 1947 [Paleospinacidae]
Macrourogaleus hassei (Woodward 1889) [Paleospinacidae]
Macrouroidei, suborder [Gadiformes]
Macrouroididae, family [Anacanthini]
Macrourus, Bloch 1786 [Pisces]
Macrourus sclerorhynchus, Valenciennes 1838 [Macrouridae]
Macroveliidae, family, Mac Kinstry 1942 [Hemiptera]
Macrovipera, Reuss 1927 [Viperidae]
Macrovipera gedulyi (Bolkay 1913) [Viperidae]
Macrovoliopus, Gorochov 1986 [Haglidae]
Macrovoliopus declivis, Gorochov 1986 [Haglidae]
Macroxus, F. Cuvier 1823 [Ierboidae]
Macroxyelinae, subfamily, Ashmead 1898 [Xyelidae]
Macroxyelini, tribe, Ashmead 1898 [Xyelidae]
Macrozafra [Neogastropoda]
Macrozamia, Miquel 1842 [Zamiaceae]
Macrura [unclassified genus]
Macrura rhenana, Malzahn 1958 [Anthracocarididae]
Macrurella [Neogastropoda]
Macruroninae, subfamily, Regan 1903 [unclassified subfamily]
Macruronus, Guenther 1873 [Gadiformes]
Macruronus eastmani, Schwarzhans et al. 2017 [unclassified species]
Macrurosaurus, H. G. Seeley 1869 [Reptilia]
Macrurosaurus semnus, Seeley 1876 [Reptilia]
Macrurus (Bloch 1786) [Pisces]
Macrurus guentheri, Vaillant 1888 [Macrouridae]
Macrurus toulai (Schubert 1906) [unclassified species]
Macrurus toulai cristasa, Basolini 1906 [unclassified subspecies]
Macryphantes, Selden 1990 [Araneae]
Macryphantes cowdeni, Selden 1990 [Araneae]
Macrypsilon [Podocopida]
Mactomyella, Chavan 1959 [Mactromyidae]
Mactra, Linnaeus 1767 [Mactridae]
Mactra (Austromactra), Iredale 1930 [Mactridae]
Mactra (Austromactra) contraria, Reeve 1854 [Mactridae]
Mactra (Austromactra) rufescens, Lamarck 1819 [Mactridae]
Mactra (Barymactra) (Cossmann 1909) [Mactridae]
Mactra (Barymactra) dernburgi, Bohm and Weisfermel 1913 [Mactridae]
Mactra (Electomactra), Iredale 1930 [Mactridae]
Mactra (Electromactra) (Ludbrook 1955) [Mactridae]
Mactra (Harvella), Gray 1853 [Mactridae]
Mactra (Harvella) elegans (Sowerby 1825) [Mactridae]
Mactra (Harvella) sanctiblasii, Maury 1925 [Mactridae]
Mactra (Harvella) sincola, Olsson 1922 [unclassified species]
Mactra (Heteromactra), Lamy 1906 [Mactridae]
Mactra (Heteromactra) grateloupi, Cossmann and Peyrot 1909 [Mactridae]
Mactra (Mactra), Linnaeus 1767 [Mactridae]
Mactra (Mactra) abbreviata, Lamarck 1819 [unclassified species]
Mactra (Mactra) eximia, Reeve 1854 [unclassified species]
Mactra (Mactra) glauca (Born 1778) [Mactridae]
Mactra (Mactra) marplatensis (Doello-Jurado 1918) [Mactridae]
Mactra (Mactra) mera (Reeve 1854) [Mactridae]
Mactra (Mactra) orthomorpha, Grant and Gale 1931 [Mactridae]
Mactra (Mactra) patagonica (d'Orbigny 1846) [Mactridae]
Mactra (Mactra) protoreevesii (Noetling 1901) [Mactridae]
Mactra (Mactrella) (Gray) [Mactridae]
Mactra (Mactrella) alata (Spengler 1802) [Mactridae]
Mactra (Mactrella) darienensis, Dall 1898 [Mactridae]
Mactra (Mactrella) exoleta (Garay 1837) [Mactridae]
Mactra (Mactrella) tumbezia, Olsson 1921 [Mactridae]
Mactra (Mactrodesma) () [Mactridae]
Mactra (Mactrodesma) fragilis (Gmelin 1792) [Mactridae]
Mactra (Mactrotoma) (Dall 1894) [Mactridae]
Mactra (Mactrotoma) nasuta (A. A. Gould 1851) [Mactridae]
Mactra (Mactrotoma) quirosana, Hodson 1931 [Mactridae]
Mactra (Maorimactra) (Finlay 1928) [Mactridae]
Mactra (Maorimactra) bodmani, Stilwell and Zinsmeister 1992 [Mactridae]
Mactra (Micromactra) (Dall 1894) [Mactridae]
Mactra (Micromactra) atacama, Pilsbry and Olsson 1941 [Mactridae]
Mactra (Micromactra) fonsecana, Hertlein and Strong 1950 [Mactridae]
Mactra (Micromactra) isthmica, Pilsbry and Lowe 1932 [Mactridae]
Mactra (Micromactra) vanattae, Pilsbry and Lowe 1932 [Mactridae]
Mactra (Mulinia) (Gray 1837) [Mactridae]
Mactra (Mulinia) atlanticola, Anderson 1929 [Mactridae]
Mactra (Nannomactra), Iredale 1930 [Mactridae]
Mactra (Spisula) (Gray 1837) [Mactridae]
Mactra (Spisula) brevirostrata (Packard 1916) [Mactridae]
Mactra (Spisula) markleyensis, Clark 1938 [unclassified species]
Mactra achatina, Holten 1802 [Mactridae]
Mactra alata, Spengler 1802 [Mactridae]
Mactra alba, W. Wood 1802 [Semelidae]
Mactra albaria, Conrad 1848 [Mactridae]
Mactra anatina, Spengler 1802 [Anatinellidae]
Mactra angusta, Reeve 1854 [Mactridae]
Mactra arctata, Conrad 1831 [Mesodesmatidae]
Mactra arcuata, J. Sowerby 1817 [Mactridae]
Mactra artopta, Woods 1850 [Mactridae]
Mactra ashburnerii, Gabb 1864 [unclassified species]
Mactra auca, d'Orbigny 1842 [Mactridae]
Mactra austeniana, Maury 1912 [Mactridae]
Mactra australis [Mactridae]
Mactra axiniformis, Tate 1887 [Mactridae]
Mactra bernayi, Cossmann 1886 [Mactridae]
Mactra californica, Conrad 1837 [Mactridae]
Mactra clathrodon, Lea 1833 [Mactridae]
Mactra colchaguana, Hupé 1854 [Veneridae]
Mactra compressa, Deshayes 1832 [Mactridae]
Mactra confraga, Conrad 1833 [Mactridae]
Mactra congesta, Conrad 1833 [Mactridae]
Mactra constricta, Woods 1850 [Mactridae]
Mactra contortula, Deshayes 1857 [Mactridae]
Mactra contraria [Mactridae]
Mactra cygnea, Chemnitz 1782 [Crassatellidae]
Mactra darienensis (Dall 1898) [Mactridae]
Mactra darwinii, Sowerby 1846 [Mactridae]
Mactra deaurata, Turton 1822 [Mesodesmatidae]
Mactra delumbis, Conrad 1832 [Mactridae]
Mactra dissimilis, Reeve 1845 [Mactridae]
Mactra dolabriformis, Conrad 1867 [Mactridae]
Mactra donacia, Lamarck 1818 [Mesodesmatidae]
Mactra elegans, Sowerby 1825 [Mactridae]
Mactra elliptica, Brown 1827 [Mactridae]
Mactra elongata, Quoy and Gaimard 1834 [Mactridae]
Mactra estrellana, Olsson 1922 [Mactridae]
Mactra exoleta, Garay 1837 [Mactridae]
Mactra falcata, A. A. Gould 1850 [Mactridae]
Mactra fragilis, Gmelin 1792 [Mactridae]
Mactra fujinensis, Yokoyama 1923 [Cardiidae]
Mactra gabbiana, Anderson 1902 [unclassified species]
Mactra glauca, Born 1778 [Mactridae]
Mactra haboroensis, Yokoyama 1927 [Mactridae]
Mactra hamiltonensis, Tate 1887 [Mactridae]
Mactra hemphilli (Dall 1894) [Mactridae]
Mactra hemphillii, Dall 1894 [Mactridae]
Mactra hiantina, Deshayes 1855 [Mactridae]
Mactra howchiniana, Tate 1887 [Mactridae]
Mactra incomatensis, Rennie 1936 [Mactridae]
Mactra irizari, Wilckens 1912 [Mactridae]
Mactra isabelleana, dOrbigny 1846 [unclassified species]
Mactra kurikoma, Nomura 1935 [Mactridae]
Mactra lamberti, Deshayes 1857 [Mactridae]
Mactra lateralis, Say 1822 [Mactridae]
Mactra laudunensis, Watelet 1853 [Mactridae]
Mactra lilacea, Lamarck 1818 [Mactridae]
Mactra loustauae, Bayan 1873 [Mactridae]
Mactra lutraria, Linnaeus 1767 [Mactridae]
Mactra maculata [Mactridae]
Mactra marplatensis, Doello-Jurado 1918 [Mactridae]
Mactra mekranensis, Newton 1905 [Mactridae]
Mactra mera, Reeve 1854 [Mactridae]
Mactra mississippiensis, Conrad 1848 [Mactridae]
Mactra montereyana, Arnold 1908 [Mactridae]
Mactra nasuta, A. A. Gould 1851 [Mactridae]
Mactra nicobarica, Gmelin 1791 [Mactridae]
Mactra oblonga, Philippi 1887 [Mactridae]
Mactra obtruncata, Woods 1850 [Mactridae]
Mactra ordinaria, Smith 1885 [Mactridae]
Mactra ovalina, Reeve 1854 [Mactridae]
Mactra ovalis, J. Sowerby 1817 [Mactridae]
Mactra packardi (Dickerson 1917) [Mactridae]
Mactra paitensis, R. A. Philippi 1853 [Mactridae]
Mactra pallida, Broderip and Sowerby 1829 [Mactridae]
Mactra parameces, Cossmann 1886 [Mactridae]
Mactra patagonica, d'Orbigny 1846 [Mactridae]
Mactra pellucida, Gmelin 1791 [Mactridae]
Mactra planulata, Conrad 1837 [Mactridae]
Mactra polynyma, Stimpson 1860 [Mactridae]
Mactra ponderosa, Conrad 1830 [Mactridae]
Mactra praetenuis, Conrad 1833 [Mactridae]
Mactra procrassa, Woods 1850 [Mactridae]
Mactra protoreevesii, Noetling 1901 [Mactridae]
Mactra pusilla, Philippi 1887 [Mactridae]
Mactra queenslandica, Smith 1914 [Mactridae]
Mactra recondita, Deshayes 1857 [Mactridae]
Mactra recurva, Wood 1828 [Anatinellidae]
Mactra revellei, Durham 1950 [Mactridae]
Mactra rostrata (Lamarck 1805) [Crassatellidae]
Mactra rufescens [Mactridae]
Mactra sectoris, Anderson and Martin 1914 [Mactridae]
Mactra semisulcata, Lamarck 1805 [Mactridae]
Mactra sericea [Mactridae]
Mactra similis, Say 1822 [Mactridae]
Mactra sincola, Olsson 1922 [Mactridae]
Mactra solida, Linnaeus 1758 [Mactridae]
Mactra solidissima, Dilwyn 1817 [Mactridae]
Mactra striatella, Lamarck 1818 [Mactridae]
Mactra stultorum (Linnaeus 1758) [Mactridae]
Mactra subcuneata, Conrad 1838 [Mactridae]
Mactra subparilis, Conrad 1841 [Mactridae]
Mactra subponderosa, d'Orbigny 1852 [Mactridae]
Mactra subtruncata (da Costa 1778) [Mactridae]
Mactra tellinoides, Conrad 1831 [Semelidae]
Mactra triangularis, Montague 1803 [Astartidae]
Mactra trigonella, Lamarck 1818 [Mactridae]
Mactra tripartita, Forbes 1846 [Mactridae]
Mactra truncata, Montague 1808 [Mactridae]
Mactra tumbezia, Olsson 1931 [Mactridae]
Mactra tumida, Bohm 1926 [Mactridae]
Mactra turgida, Gmelin 1791 [Mactridae]
Mactra velata, R. A. Philippi 1849 [Mactridae]
Mactra voyi, Gabb 1866 [Mactridae]
Mactracea, superfamily, Lamarck 1809 [Cardiida]
Mactrella, Gray [Mactridae]
Mactrella (Harvella) (Gray 1853) [Mactridae]
Mactrella (Harvella) elegans (Sowerby 1825) [Mactridae]
Mactrella alata (Spengler 1802) [Mactridae]
Mactrellona, Marks 1915 [Mactridae]
Mactrellona alata (Spengler 1802) [Mactridae]
Mactrellona exoleta (Garay 1837) [Mactridae]
Mactrellona tumbezia (Olsson 1921) [Mactridae]
Mactridae, family, Lamarck 1809 [Cardiida]
Mactrinae, subfamily, Lamarck 1809 [Mactridae]
Mactrinula, Gray 1853 [Mactridae]
Mactrinula tryphera, Melvill 1899 [Mactridae]
Mactroderma, Dall 1894 [Mactridae]
Mactroderma velata (R. A. Philippi 1849) [Mactridae]
Mactrodesma [Mactridae]
Mactrodesma ponderosa (Conrad 1830) [Mactridae]
Mactrodesma subponderosa (d'Orbigny 1852) [Mactridae]
Mactroidea, superfamily (Lamarck 1809) [Cardiida]
Mactromeris, Conrad 1868 [Mactridae]
Mactromeris abbotti (Wiedley 1928) [Mactridae]
Mactromeris acutirostrata (Packard 1916) [Mactridae]
Mactromeris albaria (Conrad 1848) [Mactridae]
Mactromeris bisculpturata (Anderson and Hanna 1942) [Mactridae]
Mactromeris brevirostrata (Packard 1916) [Mactridae]
Mactromeris catilliformis (Conrad 1867) [Mactridae]
Mactromeris eugenensis (Clark 1925) [unclassified species]
Mactromeris hemphilli (Dall 1894) [Mactridae]
Mactromeris hemphillii (Dall 1894) [Mactridae]
Mactromeris mercedensis (Packard 1916) [Mactridae]
Mactromeris merriami (Packard 1916) [Mactridae]
Mactromeris montereyana (Arnold 1908) [Mactridae]
Mactromeris monteryana, Arnold 1908 [unclassified species]
Mactromeris muliniaformis (Wagner and Schilling 1923) [Mactridae]
Mactromeris pittsburgensis (Clark 1925) [unclassified species]
Mactromeris polynyma (Stimpson 1860) [Mactridae]
Mactromeris ramonensis (Packard and Clark 1915) [Mactridae]
Mactromeris rushi (Wagner and Schilling 1923) [Mactridae]
Mactromeris sectoris (Anderson and Martin 1914) [Mactridae]
Mactromeris tejonensis (Packard 1916) [Mactridae]
Mactromya, Agassiz 1843 [Mactromyidae]
Mactromya aequalis, Agassiz 1843 [Mactromyidae]
Mactromya cardioides (Phillips 1829) [Mactromyidae]
Mactromya crassa, Agassiz 1845 [Mactromyidae]
Mactromya daghaniensis, Cox 1935 [Mactromyidae]
Mactromya groenlandica, Rosenkrantz 1934 [Mactromyidae]
Mactromya quadrata, Rollier 1913 [Mactromyidae]
Mactromya rugosa (Roemer 1836) [Mactromyidae]
Mactromya verioti (Buvignier 1852) [Mactromyidae]
Mactromyidae, family, Cox 1929 [Lucinida]
Mactromyoidea, superfamily, Cox 1929 [Lucinida]
Mactromyopsis, Chavan 1905 [Mactromyidae]
Mactromyopsis (Mactomyella) (Chavan 1959) [Mactromyidae]
Mactrona [Cardiida]
Mactropsis [Mactridae]
Mactropsis aequorea (Conrad 1833) [unclassified species]
Mactropsis rectilinearis (Conrad 1833) [unclassified species]
Mactrotoma, Dall 1894 [Mactridae]
Mactrotoma (Micromactra) (Dall 1894) [Mactridae]
Mactrotoma (Micromactra) californica (Conrad 1837) [Mactridae]
Mactrotoma angusta (Reeve 1854) [Mactridae]
Mactrotoma californica (Conrad 1837) [Mactridae]
Mactrotoma fragilis (Gmelin 1792) [Mactridae]
Mactrotoma isthmica (Pilsbry and Lowe 1932) [Mactridae]
Mactrotoma nasuta (A. A. Gould 1851) [Mactridae]
Mactrotoma quirosana (Hodson 1931) [Mactridae]
Mactrotoma velata (R. A. Philippi 1849) [Mactridae]
Maculaberotha, Yuan et al. 2016 [Berothidae]
Maculaberotha nervosa, Yuan et al. 2016 [Berothidae]
Maculaprosbole, Zheng et al. 2016 [Tettigarctidae]
Maculaprosbole zhengi, Zheng et al. 2016 [Tettigarctidae]
Maculigastrula, Hong 2002 [Huaxiasciaritidae]
Maculigastrula arciformis, Hong 2002 [Huaxiasciaritidae]
Maculitendipes, Hong 2002 [Chironomidae]
Maculitendipes sinabarius, Hong 2002 [Chironomidae]
Maculoedischia, Gorochov 1987 [Pruvostitidae]
Maculoedischia abnormis, Gorochov 1987 [Pruvostitidae]
Maculoedischia sojanensis, Gorochov 1987 [Pruvostitidae]
Maculoedischiinae, subfamily, Gorochov 1987 [Pruvostitidae]
Maculopeplum, Dall 1906 [Volutidae]
Maculopeplum junonia (Lamark 1804) [Volutidae]
Maculopterum, Kukalová 1964 [Euryptilonidae]
Maculopterum maculatum, Kukalová 1964 [Euryptilonidae]
Maculotriton, Dall 1904 [Muricidae]
Macurdablastus, Broadhead 1984 [Blastoidea]
Macurdablastus uniplicatus, Broadhead 1984 [Macurdablastus]
Madaeus, Dana 1851 [Xanthidae]
Madaeus mbalavuensis, Rathbun 1945 [Xanthidae]
Madaeus variabilis, Rathbun 1945 [Xanthidae]
Madagascarchaea, Wood and Scharff 2018 [unclassified genus]
Madagascarchaea gracilicollis (Millot 1948) [unclassified species]
Madagascarites, Collignon 1966 [Nostoceratidae]
Madagascarphantes, Wunderlich 2012 [Linyphiidae]
Madagascarphantes vomerans, Wunderlich 2012 [Linyphiidae]
Madakoala, Woodburne et al. 1987 [Phascolarctidae]
Madakoala devisi, Woodburne et al. 1987 [Phascolarctidae]
Madakoala wellsi, Woodburne et al. 1987 [Phascolarctidae]
Madaraspis, Fortey and Droser 1996 [Bathyuridae]
Madaraspis magnifica, Fortey and Droser 1996 [Bathyuridae]
Madariscus, Wade 1941 [Archaeomaenidae]
Madarites, Buckman 1921 [Tulitidae]
Madarocephalus, Resser 1938 [Catillicephalidae]
Madarosia, Cooper and Grant 1976 [Wellerellidae]
Madarosia anterolamellata, Cooper and Grant 1976 [Wellerellidae]
Madarosia pentagona, Cooper and Grant 1976 [Wellerellidae]
Madarosiinae, subfamily, Savage 1996 [Wellerellidae]
Madasumma, Walker 1869 [Gryllidae]
Madasumma europensis, Chopard 1936 [Gryllidae]
Maddenia, Kramarz and Bond 2009 [Astrapotheriidae]
Maddenia lapidaria, Kramarz and Bond 2009 [Astrapotheriidae]
Madeoveliidae, family (Poisson 1959) [unclassified family]
Madeoveliinae, subfamily, Poisson 1959 [Mesoveliidae]
Madera, Carpenter 1970 [Lycocercidae]
Madera mamayi, Carpenter 1970 [Lycocercidae]
Maderia, Imlay 1938 [Olcostephanidae]
Maderia casitensis, Imlay 1940 [Olcostephanidae]
Maderia coahuilensis, Imlay 1940 [Olcostephanidae]
Maderia marcoensis, Imlay 1940 [unclassified species]
Maderia marcosensis, Imlay 1940 [Olcostephanidae]
Madiella [Neogastropoda]
Madiganella, Teichert and Glenister 1952 [Ruedemannoceratidae]
Madiganella magna, Teichert and Glenister 1952 [unclassified species]
Madiganella tatei (Teichert and Glenister 1952) [unclassified species]
Madigania, R. C. Sprigg 1949 [unclassified genus]
Madigania annulata, R. C. Sprigg 1949 [Aspidella]
Madiorthis, Zuykov and Harper 2008 [Plaesiomyidae]
Madiorthis alsami, Zuykov and Harper 2008 [Plaesiomyidae]
Madizinae, subfamily, Czerny 1909 [Milichiidae]
Madoia, Sun and Ye 1982 [Mentzeliidae]
Madoia rostrata, Sun and Ye 1982 [Mentzeliidae]
Madoinae, subfamily, He and Chen 2016 [Mentzeliidae]
Madonia, Senowbari-Daryan and Schäfer 1986 [Agelasida]
Madonia conica, Senowbari-Daryan and Schäfer 1986 [Agelasida]
Madonicodium, Senowbari-Daryan and Zamparelli 2005 [Halimedaceae]
Madonicodium noricum, Senowbari-Daryan and Zamparelli 2005 [Halimedaceae]
Madopterini, tribe, Lacordaire 1866 [Curculionidae]
Madoqua, Ogilby 1837 [Bovidae]
Madoqua avifluminis (Dietrich 1950) [unclassified species]
Madoqua guentheri, Thomas 1894 [Bovidae]
Madoqua kirkii, Gunther 1880 [Bovidae]
Madoqua phillipsi, Thomas 1894 [Bovidae]
Madracis, Milne-Edwards and Haime 1849 [Astrocoeniidae]
Madracis asperula, Milne-Edwards and Haime 1850 [Astrocoeniidae]
Madracis auretenra, Locke et al. 2007 [Astrocoeniidae]
Madracis crassisepta, Bromfield 2013 [Astrocoeniidae]
Madracis crescentensis, Durham 1942 [Astrocoeniidae]
Madracis decactis (Lyman 1859) [Astrocoeniidae]
Madracis decaseptata (Weisbord 1971) [Astrocoeniidae]
Madracis densa, Budd et al. 1992 [Astrocoeniidae]
Madracis dodecachora, Squires 1958 [Astrocoeniidae]
Madracis duncani, Wells 1945 [Astrocoeniidae]
Madracis ganei, Vaughan 1900 [Astrocoeniidae]
Madracis gregorioi, Vaughan 1900 [Astrocoeniidae]
Madracis herricki, Wells 1934 [Astrocoeniidae]
Madracis incerta, Chevalier 1962 [Astrocoeniidae]
Madracis johnsoni, Vaughan 1900 [Astrocoeniidae]
Madracis johnwellsi, Frost and Langenheim 1974 [Astrocoeniidae]
Madracis kirbyi, Veron and Pichon 1976 [Astrocoeniidae]
Madracis labrum, Bromfield 2013 [Astrocoeniidae]
Madracis mirabilis (Duchassaing and Michelotti 1860) [Astrocoeniidae]
Madracis ornata (Michelotti 1838) [Astrocoeniidae]
Madracis pharensis (Heller 1868) [Astrocoeniidae]
Madracis rotiformis, Wu 1975 [Astrocoeniidae]
Madracis stewarti, Durham 1942 [Astrocoeniidae]
Madracis vaughani, Wells 1941 [Astrocoeniidae]
Madracis wellsi, Bentson 1943 [Astrocoeniidae]
Madrasites, Kilian and Reboul 1909 [Kossmaticeratidae]
Madrasites fortior, Marshall 1926 [Kossmaticeratidae]
Madrasites multicostatus, Marshall 1926 [Kossmaticeratidae]
Madrasites natalensis, Spath 1922 [Kossmaticeratidae]
Madrasites regularis, Marshall 1926 [Kossmaticeratidae]
Madrasites similis, Spath 1921 [Kossmaticeratidae]
Madrasites sulcatus, Marshall 1926 [Kossmaticeratidae]
Madrepora, Linne 1758 [Oculinidae]
Madrepora (Amphihelia) (Milne-Edwards and Haime 1857) [Oculinidae]
Madrepora (Amphihelia) reflexa (Montanaro 1929) [Oculinidae]
Madrepora abdita, Ellis and Solander 1786 [Merulinidae]
Madrepora abrotanoides, Lamarck 1816 [Acroporidae]
Madrepora acuminata, Verrill 1864 [Acroporidae]
Madrepora affinis, Brook 1893 [Acroporidae]
Madrepora agaricites, Linnaeus 1758 [Agariciidae]
Madrepora ampliata, Ellis and Solander 1786 [Merulinidae]
Madrepora anglica, Duncan 1866 [Acroporidae]
Madrepora angulata, Quelch 1886 [Acroporidae]
Madrepora angulosa, Pallas 1766 [Mussidae]
Madrepora annularis, Ellis and Solander 1876 [Merulinidae]
Madrepora arachnoides, Parkinson 1808 [Latomeandridae]
Madrepora arenosa, Esper 1797 [Poritidae]
Madrepora areolata, Linnaeus 1758 [Faviidae]
Madrepora armata, Ehrenberg 1834 [Astrocoeniidae]
Madrepora aspera, Ellis and Solander 1786 [Pectiniidae]
Madrepora aspera, Dana 1846 [Acroporidae]
Madrepora austera, Dana 1846 [Acroporidae]
Madrepora bonellii, Sismonda 1871 [Acroporidae]
Madrepora borneoensis, Felix 1921 [Acroporidae]
Madrepora brachyclados, Ortmann 1888 [Acroporidae]
Madrepora brueggemanni, Brook 1893 [Acroporidae]
Madrepora bureaui, Filliozat 1914 [Oculinidae]
Madrepora cactus, Forskal 1775 [Agariciidae]
Madrepora caespitosa, Linne 1767 [Faviidae]
Madrepora cavernosa, Linne 1767 [Montastraeidae]
Madrepora cavernosa, Forskal 1775 [Merulinidae]
Madrepora centralis, Mantell 1822 [Caryophylliidae]
Madrepora cerealis, Dana 1846 [Acroporidae]
Madrepora cervicornis, Lamarck 1816 [Acroporidae]
Madrepora chalcidicum, Forskal 1775 [Merulinidae]
Madrepora circumvallata, Ehrenberg 1834 [Acroporidae]
Madrepora clathrata, Brook 1891 [Acroporidae]
Madrepora clivosa, Ellis and Solander 1786 [Faviidae]
Madrepora coalescens, Goldfuss 1826 [Stylinidae]
Madrepora cochlea, Spengler 1781 [Dendrophylliidae]
Madrepora compressa, Bassett-Smith 1890 [Acroporidae]
Madrepora corymbosa, Forskal 1775 [Mussidae]
Madrepora corymbosa, Lamarck 1816 [Acroporidae]
Madrepora costata, Filliozat 1914 [Oculinidae]
Madrepora crassa, Milne Edwards 1860 [Acroporidae]
Madrepora crater, Pallas 1766 [Dendrophylliidae]
Madrepora crateriformis, Gardiner 1898 [Acroporidae]
Madrepora cucullata, Ellis and Solander 1786 [Agariciidae]
Madrepora cuneata, Dana 1846 [Acroporidae]
Madrepora cytherea, Dana 1846 [Acroporidae]
Madrepora daedalea, Ellis and Solander 1786 [Merulinidae]
Madrepora daedalea, Forskal 1775 [Poritidae]
Madrepora danai, Milne-Edwards and Haime 1860 [Acroporidae]
Madrepora denticulata, Ellis and Solander 1786 [Faviidae]
Madrepora dianthus, Esper 1794 [Caryophylliidae]
Madrepora digitifera, Dana 1846 [Acroporidae]
Madrepora divaricata, Dana 1846 [Acroporidae]
Madrepora duncani, Reuss 1867 [Acroporidae]
Madrepora echinata, Pallas 1766 [Fungiidae]
Madrepora elegans, Milne Edwards 1860 [Acroporidae]
Madrepora elephantotus, Pallas 1766 [Merulinidae]
Madrepora exarata, Michelotti 1838 [Acroporidae]
Madrepora exesa, Pallas 1766 [Merulinidae]
Madrepora fascicularis, Linnaeus 1767 [Oculinidae]
Madrepora fastigiata, Pallas 1766 [Meandrinidae]
Madrepora faveolata, Ellis and Solander 1786 [Merulinidae]
Madrepora favus, Forskal 1775 [Merulinidae]
Madrepora fennemai, Gerth 1921 [Acroporidae]
Madrepora fimbriata, Spengler 1799 [Euphyllidae]
Madrepora florida, Dana 1846 [Acroporidae]
Madrepora foliosa, Pallas 1766 [Acroporidae]
Madrepora formosa, Dana 1846 [Acroporidae]
Madrepora fragum, Esper 1795 [Faviidae]
Madrepora fungites, Linnaeus 1758 [Fungiidae]
Madrepora galaxea, Ellis and Solander 1786 [Acroporidae]
Madrepora gemmifera, Brook 1892 [Acroporidae]
Madrepora glauca, Brook 1893 [Acroporidae]
Madrepora globiceps, Dana 1846 [Acroporidae]
Madrepora grandis, Brook 1892 [Acroporidae]
Madrepora granulata (Tenison-Woods 1880) [Oculinidae]
Madrepora gravida, Dana 1846 [Acroporidae]
Madrepora gyrosa, Ellis and Solander 1786 [Faviidae]
Madrepora haimei, Milne-Edwards and Haime 1860 [Acroporidae]
Madrepora hebes, Dana 1846 [Acroporidae]
Madrepora hercegowinensis, Oppenheim 1901 [Pocilloporidae]
Madrepora hispida, Brook 1891 [Acroporidae]
Madrepora horrida, Dana 1846 [Acroporidae]
Madrepora humilis, Dana 1846 [Acroporidae]
Madrepora hyacinthus, Dana 1846 [Acroporidae]
Madrepora implicata, Dana 1846 [Acroporidae]
Madrepora inermis, Brook 1981 [Acroporidae]
Madrepora intermedia, Brook 1891 [Acroporidae]
Madrepora intersepta, Esper 1795 [Astrocoeniidae]
Madrepora irregularis, Brook 1892 [Acroporidae]
Madrepora kauaiensis, Vaughan 1907 [Oculinidae]
Madrepora labyrinthiformis, Linnaeus 1758 [Faviidae]
Madrepora lacera, Pallas 1766 [unclassified species]
Madrepora lactuca, Pallas 1766 [Merulinidae]
Madrepora lamellosa, Esper 1795 [Merulinidae]
Madrepora latistella, Brook 1892 [Acroporidae]
Madrepora lavandulina, Michelin 1840 [Acroporidae]
Madrepora limax, Esper 1797 [Fungiidae]
Madrepora listeri, Brook 1893 [Acroporidae]
Madrepora longicyathus, Milne-Edwards and Haime 1860 [Acroporidae]
Madrepora lunata, Bruguiere 1792 [Meandrinidae]
Madrepora maeandrites, Linnaeus 1758 [Meandrinidae]
Madrepora microphthalma, Verrill 1869 [Acroporidae]
Madrepora mitsukurii, Niko et al. 2016 [Oculinidae]
Madrepora monasteriata, Forskal 1775 [Acroporidae]
Madrepora monile, Forskal 1775 [Siderastreidae]
Madrepora monticulosa, Brüggemann 1879 [Acroporidae]
Madrepora nasuta, Dana 1846 [Acroporidae]
Madrepora natans, Houttuyn 1772 [Faviidae]
Madrepora natchitochensis (Vaughan 1900) [Oculinidae]
Madrepora nobilis, Dana 1846 [Acroporidae]
Madrepora oculata, Linnaeus 1758 [Oculinidae]
Madrepora orbicularis, Brook 1892 [Acroporidae]
Madrepora ornata, Defrance 1828 [Acroporidae]
Madrepora palmata, Lamarck 1816 [Acroporidae]
Madrepora patella, Ellis and Solander 1786 [Fungiidae]
Madrepora peltata, Esper 1794 [Dendrophylliidae]
Madrepora pentagona, Esper 1794 [Merulinidae]
Madrepora pertusa, Linnaeus 1758 [Caryophylliidae]
Madrepora pharaonis, Milne-Edwards and Haime 1860 [Acroporidae]
Madrepora phrygia, Ellis and Solander 1786 [Merulinidae]
Madrepora pistillata, Esper 1797 [Pocilloporidae]
Madrepora pleiades, Ellis and Sollandes 1786 [Faviidae]
Madrepora plicata, Brook 1891 [Acroporidae]
Madrepora polymorpha, Brook 1891 [Acroporidae]
Madrepora polystoma, Brook 1891 [Acroporidae]
Madrepora porcellana (Moseley 1881) [Oculinidae]
Madrepora porites, Pallas 1766 [Poritidae]
Madrepora porpita, Linnaeus 1767 [Paleocyclidae]
Madrepora porpites, Smith 1816 [Microsolenidae]
Madrepora profunda (Chevalier 1961) [Oculinidae]
Madrepora prolifera, Pallas 1766 [Caryophylliidae]
Madrepora pulchra, Brook 1891 [Acroporidae]
Madrepora radians, Pallas 1766 [Siderastreidae]
Madrepora robusta, Dana 1846 [Acroporidae]
Madrepora roemeri, Duncan 1866 [Acroporidae]
Madrepora rosea, Pallas 1766 [Stylasterina]
Madrepora rotulosa, Ellis and Solander 1786 [Merulinidae]
Madrepora rudis, Rehberg 1892 [Acroporidae]
Madrepora rus, Forskal 1775 [Poritidae]
Madrepora samoensis, Brook 1891 [Acroporidae]
Madrepora scherzeriana, Brüggemann 1877 [Acroporidae]
Madrepora secale, Studer 1878 [Acroporidae]
Madrepora selago, Studer 1878 [Acroporidae]
Madrepora serailia, Forskal 1775 [Merulinidae]
Madrepora sessilis, Schlotheim 1820 [Rhizangiidae]
Madrepora siderea, Ellis and Solander 1786 [Siderastreidae]
Madrepora sinuosa, Ellis and Solander 1786 [Mussidae]
Madrepora smithi, Brook 1893 [Acroporidae]
Madrepora solanderi, Defrance 1828 [Acroporidae]
Madrepora solida, Forskal 1775 [Poritidae]
Madrepora solida, Nomland 1916 [Oculinidae]
Madrepora spicifera, Dana 1846 [Acroporidae]
Madrepora spongiosa, Ehrenberg 1834 [Acroporidae]
Madrepora squarrosa (Ehrenberg 1834) [Acroporidae]
Madrepora stilosa, Ehrenberg 1834 [Acroporidae]
Madrepora subseriata, Ehrenberg 1834 [Pocilloporidae]
Madrepora surculosa, Dana 1846 [Acroporidae]
Madrepora tenella, Brook 1892 [Acroporidae]
Madrepora tenuis, Dana 1846 [Acroporidae]
Madrepora teres, Verrill 1866 [Acroporidae]
Madrepora tortuosa, Dana 1846 [Acroporidae]
Madrepora tumida, Verrill 1866 [Acroporidae]
Madrepora undata, Ellis and Solander 1786 [Agariciidae]
Madrepora valenciennesi, Milne-Edwards and Haime 1860 [Acroporidae]
Madrepora valida, Dana 1846 [Acroporidae]
Madrepora variabilis, Klunzinger 1879 [Acroporidae]
Madrepora variolosa, Klunzinger 1879 [Acroporidae]
Madrepora vasseuri, Filliozat 1914 [Oculinidae]
Madrepora venosa, Ehrenberg 1834 [Acroporidae]
Madrepora verrucosa, Ellis and Solander 1786 [Pocilloporidae]
Madrepora vorticalis, Parkinson 1808 [Lithostrotionidae]
Madreporites, Martin 1809 [unclassified genus]
Madreporites duplicatus, Martin 1809 [Axophyllidae]
Madrimosaurus, Meyer 1837 [unclassified genus]
Madrimosaurus hugii, Meyer 1837 [Reptilia]
Madrosauridae, family (Cope 1869) [Reptilia]
Madrosaurus (Leidy 1858) [Hadrosauridae]
Madrynornis, Acosta Hospitaleche et al. 2007 [Spheniscidae]
Madrynornis mirandus, Acosta Hospitaleche et al. 2007 [Spheniscidae]
Madtsoia, Simpson 1933 [Madtsoiidae]
Madtsoia bai, Simpson 1933 [Madtsoiidae]
Madtsoia camposi, Rage 1998 [Madtsoiidae]
Madtsoia laurasiae, Rage 1996 [Madtsoiidae]
Madtsoia madagascariensis, Hoffstetter 1961 [Madtsoiidae]
Madtsoia pisdurensis, Mohabey et al. 2011 [Madtsoiidae]
Madtsoiidae, family (Hoffstetter 1961) [Squamata]
Madtsoiinae, subfamily, Hoffstetter 1961 [Squamata]
Maduiya, Rozova 1963 [Aphelaspididae]
Maduiya composita (Rozova 1963) [Aphelaspididae]
Maduiya maduensis, Rozova 1963 [Aphelaspididae]
Maduiya sibirica, Rozova 1963 [Aphelaspididae]
Maduradinium, Cookson and Eisenak 1970 [Peridiniaceae]
Maduradinum, Cookson and Eisenack 1970 [unclassified genus]
Maduradinum pentagonum, Cookson and Eisenack 1970 [Maduradinum]
Madygella, Rasnitsyn 1969 [Xyelidae]
Madygella analoga, Rasnitsyn 1969 [Xyelidae]
Madygella aristovi, Kopylov 2014 [Xyelidae]
Madygella bashkuevi, Kopylov 2014 [Xyelidae]
Madygella kurochkini, Kopylov 2014 [Xyelidae]
Madygella levivenosa, Kopylov 2014 [Xyelidae]
Madygellinae, subfamily, Rasnitsyn 1969 [Xyelidae]
Madygenerpeton, Schoch et al. 2010 [Chroniosuchidae]
Madygenerpeton pustulatus, Schoch et al. 2010 [Chroniosuchidae]
Madygenia, Petrunina 1975 [Rorringtoniidae]
Madygenia, Sharov 1968 [Proparagryllacrididae]
Madygenia brachypyga (Maar and Nicholson 1888) [Rorringtoniidae]
Madygenia communis, Ju 1981 [Rorringtoniidae]
Madygenia extremalis, Gorochov 1987 [Proparagryllacrididae]
Madygenia longissima, Gorochov 1987 [Proparagryllacrididae]
Madygenia orientalis, Sharov 1968 [Proparagryllacrididae]
Madygenia ovalis, Gorochov 1987 [Proparagryllacrididae]
Madygenia suavis, Petrunina 1975 [Rorringtoniidae]
Madygenidelia, Storozhenko 1996 [Grylloblattida]
Madygenidelia conjuncta, Storozhenko 1996 [Grylloblattida]
Madygeniinae, subfamily, Gorochov 1987 [Proparagryllacrididae]
Madygenius, Rasnitsyn 1969 [Xyelidae]
Madygenius extraradius, Rasnitsyn 1969 [Xyelidae]
Madygenius primitivus, Rasnitsyn 1969 [Xyelidae]
Madygenocephalus, Aristov 2011 [Megakhosaridae]
Madygenocephalus micropteron, Aristov 2011 [Megakhosaridae]
Madygenophlebia, Storozhenko 1992 [Madygenophlebiidae]
Madygenophlebia bella, Storozhenko 1992 [Madygenophlebiidae]
Madygenophlebia nana, Storozhenko 1992 [Madygenophlebiidae]
Madygenophlebia primitiva, Storozhenko 1992 [Madygenophlebiidae]
Madygenophlebiidae, family, Storozhenko 1992 [Grylloblattida]
Madygenopsyllidium, Becker-Migdisova 1985 [Pincombeidae]
Madygenopsyllidium djailautshoense, Becker-Migdisova 1985 [Pincombeidae]
Madygenorhynchus, Zherikhin and Gratshev 1993 [Obrieniidae]
Madygenorhynchus multifidus, Zherikhin and Gratshev 1993 [Obrieniidae]
Madysauridae, family, Tatarinov 2005 [Cynodontia]
Madysaurus, Tatarinov 2005 [Madysauridae]
Madysaurus sharovi, Tatarinov 2005 [Madysauridae]
Maeandra, Oken 1815 [Meandrinidae]
Maeandra antiguensis, Vaughan 1919 [Meandrinidae]
Maeandra areolata (Linnaeus 1758) [Faviidae]
Maeandra astreiformis (Milne-Edwards and Haime 1849) [Merulinidae]
Maeandra bowersi, Vaughan 1917 [Faviidae]
Maeandra clivosa (Ellis and Solander 1786) [Faviidae]
Maeandra cylindrus, Ehrenberg 1834 [Meandrinidae]
Maeandra daedalea (Ellis and Solander 1786) [Merulinidae]
Maeandra dumblei, Vaughan 1919 [Faviidae]
Maeandra euaensis, Hoffmeister 1932 [Merulinidae]
Maeandra labyrinthiformis (Linnaeus 1758) [Faviidae]
Maeandra lamellina, Ehrenberg 1834 [Merulinidae]
Maeandra portoricensis, Vaughan 1919 [Faviidae]
Maeandra stricta (Milne-Edwards and Haime 1857) [Merulinidae]
Maeandra strigosa (Dana 1846) [Faviidae]
Maeandramorpha, Babayev 1973 [Montlivaltiidae]
Maeandramorpha daschkessanica, Babayev 1973 [Montlivaltiidae]
Maeandrella, Oppenheim 1930 [Agariciidae]
Maeandrella haipensis, Eguchi 1951 [Agariciidae]
Maeandrella wellsi (Reig Oriol 1995) [Agariciidae]
Maeandricampus, C. Schweitzer and R. Feldmann 2002 [Macropipidae]
Maeandricampus americanus, M. J. Rathbun 1930 [Macropipidae]
Maeandricampus granuliferum, Glaessner 1960 [Macropipidae]
Maeandricampus starri, Feldmann et al. 2018 [unclassified species]
Maeandricampus triangulum (Rathbun 1926) [Macropipidae]
Maeandrina (Lamarck 1801) [Meandrinidae]
Maeandrina areolata (Linnaeus 1758) [Faviidae]
Maeandrina clivosa (Ellis and Solander 1786) [Faviidae]
Maeandrina delicatula, Ortmann 1888 [Merulinidae]
Maeandrina labyrinthica, Klipstein 1845 [Latomeandridae]
Maeandrograptus [Graptoloidea]
Maeandropolydora, Voigt 1965 [Ichnofossils]
Maeandroseris, Rousseau 1854 [Siderastreidae]
Maeandrostia, Girty 1908 [Maeandrostiidae]
Maeandrostia dubia, Senowbari-Daryan et al. 2007 [Maeandrostiidae]
Maeandrostia kansasensis, Girty 1908 [Maeandrostiidae]
Maeandrostia radiata, Senowbari-Daryan et al. 2005 [Maeandrostiidae]
Maeandrostia rostrata, Deng 1982 [Maeandrostiidae]
Maeandrostiidae, family, Finks 1971 [Agelasida]
Maeandrostylis (Frech 1890) [Stylophyllidae]
Maeandrostylis frechi (Haas 1909) [Stylophyllidae]
Maeandrostylis irregulare, Frech 1890 [unclassified species]
Maeandrostylis irregularis (Frech 1890) [Stylophyllidae]
Maedleriella, Grambast 1957 [Characeae]
Maelestes, Wible et al. 2007 [Cimolestidae]
Maelestes gobiensis, Wible et al. 2007 [Cimolestidae]
Maelonoceras, A. Hyatt 1884 [Oncoceratidae]
Maelonoceras billingsi, A. F. Foerste 1924 [Oncoceratidae]
Maelonoceras metellus, Billings 1865 [Oncoceratidae]
Maelonoceras praematurum (E. Billings 1860) [Oncoceratidae]
Maemia [Productellidae]
Maena, Cuvier 1829 [Maenidae]
Maeneceras, Hyatt 1884 [Sporadoceratidae]
Maeneceras acutolaterale (Sandberger and Sandberger 1850) [Sporadoceratidae]
Maeneceras koeneni, Frech 1902 [Maenioceratidae]
Maeneceras tenue, Holzapfel 1895 [Maenioceratidae]
Maenidae, family [Perciformes]
Maenioceras, Schindewolf 1933 [Maenioceratidae]
Maenioceras (Hyatt 1884) [Sporadoceratidae]
Maenioceras (Afromaenioceras), Göddertz 1987 [Maenioceratidae]
Maenioceras (Afromaenioceras) sulcatostriatum (Bensaid 1974) [Maenioceratidae]
Maenioceras (Maenioceras), Schindewolf 1933 [Maenioceratidae]
Maenioceras (Maenioceras) terebratum (Sandberger and Sandberger 1850) [Maenioceratidae]
Maenioceras apertum, Foord and Crick 1897 [Maenioceratidae]
Maenioceras crassum, Bensaid 1874 [Maenioceratidae]
Maenioceras intermedium, Foord and Crick 1897 [Maenioceratidae]
Maenioceras sulcatostriatum, Bensaid 1974 [Maenioceratidae]
Maenioceras tenue (Holzapfel 1895) [Maenioceratidae]
Maenioceras terebratum (Sandberger and Sandberger 1850) [Maenioceratidae]
Maenioceratidae, family, Bogoslovsky 1958 [Agoniatitida]
Maennilia, Rozhnov and Jefferies 1996 [Dendrocystitidae]
Maennilicrinida, order, Ausich 1998 [Crinoidea]
Maennilicrinidae, family, Ausich 1998 [Maennilicrinida]
Maennilicrinus, Rozhnov 1988 [Crinoidea]
Maennilocystis, Paul and Rozhnov 2016 [unclassified genus]
Maennilocystis heckeri, Paul and Rozhnov 2016 [unclassified species]
Maeonia (Dana 1847) [Vacunellidae]
Maeonia arbitrata, Reed 1932 [Vacunellidae]
Maeonia axinia, Dana 1849 [Megadesmidae]
Maeonia carinata (Morris 1845) [Vacunellidae]
Maeonia elliptica (Dana 1847) [Megadesmidae]
Maeonia elongata (Dana 1847) [Vacunellidae]
Maeonia fragilis, Dana 1849 [Vacunellidae]
Maeonia gigas (M'Coy 1847) [Megadesmidae]
Maeonia gracilis (Dana 1847) [Megadesmidae]
Maeonia grandis (Dana 1847) [Megadesmidae]
Maeonia morrisi, Etheridge 1919 [Vacunellidae]
Maeonia morrisii, Etheridge 1919 [Vacunellidae]
Maeonia myiformis (Dana 1847) [Megadesmidae]
Maeonia recta (Dana 1847) [Megadesmidae]
Maeonia valida (Dana 1847) [Vacunellidae]
Maera, H. Adams and A. Adams 1858 [Tellinidae]
Maera salmonea, Carpenter 1864 [Tellinidae]
Maesa, Forsskal 1775 [Primulaceae]
Maesiella, McLean 1971 [Turridae]
Maevia, Koch 1846 [Salticidae]
Maevia eureka, Riquelme and Menéndez-Acuńa 2017 [unclassified species]
Mafangscolex, Hu 2005 [Palaeoscolecidae]
Mafangscolex sinensis, Hou and Sun 1988 [Palaeoscolecidae]
Mafatrisauropus, Ellenberger 1970 [Avetheropoda]
Mafatrisauropus errans, Ellenberger 1970 [Avetheropoda]
Mafia, J. W. F. Reumer 1984 [Soricidae]
Mafoletia [Chondrichthyes]
Magadania, Ganelin 1977 [Monticuliferidae]
Magadania bajkurica (Ustritsky 1963) [Monticuliferidae]
Magadania modotonensis, Kotljar 1977 [Monticuliferidae]
Magadanobracon, Belokobylskij 2012 [Braconidae]
Magadanobracon rasnitsyni, Belokobylskij 2012 [Braconidae]
Magadanobracon zherikhini, Belokobylskij 2012 [Braconidae]
Magadiceramus, Heinz 1932 [Inoceramidae]
Magadiceramus subquadratus (Schlüter 1887) [Inoceramidae]
Magadina, Thomson 1915 [Terebratellidae]
Magadina browni, Thomson 1915 [unclassified species]
Magadina cumingi, Davidson 1852 [Terebratellidae]
Magadina squiresi, MacKinnon 1993 [Terebratellidae]
Magadina waiparaensis, Thomson 1915 [unclassified species]
Magadinae, subfamily, Davidson 1886 [Terebratellidae]
Magadinella, Thomson 1915 [Terebratellidae]
Magadinella mineuri, Richardson 1987 [Terebratellidae]
Magadinella woodsiana (Tate 1880) [Terebratellidae]
Magallanesia, Sano et al. 2014 [Polyconitidae]
Magallanesia canaliculata, Sano et al. 2014 [Polyconitidae]
Magas, Sowerby 1816 [Terebratulida]
Magas chitoniformis (Schlotheim 1813) [Terebratulida]
Magas geinitzi, Schloenbach 1866 [Zeilleriidae]
Magas mesembrina, Etheridge 1913 [Kingenidae]
Magas mesmebrinus, Etheridge 1913 [Kingenidae]
Magasella (Dall 1870) [Terebratellidae]
Magasella australis, Buckman 1910 [Terebratellidae]
Magasella compta, Richardson 1991 [Terebratellidae]
Magasella cretacea, Etheridge 1913 [Bouchardiidae]
Magasella neozelandica (Ihering 1903) [unclassified species]
Magasella sanguinea (Leach 1814) [unclassified species]
Magasella woodsiana, Tate 1880 [Terebratellidae]
Magdalidini, tribe (Pascoe 1870) [Curculionidae]
Magdalinae, subfamily, Pascoe 1870 [Curculionidae]
Magdalini, tribe (Pascoe 1870) [Curculionidae]
Magdalinus, Germar 1843 [Curculionidae]
Magdalinus deucalionis, von Heyden and von Heyden 1866 [Curculionidae]
Magdalinus protogenius, von Heyden and von Heyden 1866 [Curculionidae]
Magdalis, Germar 1817 [Curculionidae]
Magdalis deucalionis (von Heyden and von Heyden 1866) [Curculionidae]
Magdalis lecontei, Horn 1873 [Curculionidae]
Magdalis moesta, von Schlechtendal 1894 [Curculionidae]
Magdalis protogenius (von Heyden and von Heyden 1866) [Curculionidae]
Magdalis sedimentorum, Scudder 1893 [Curculionidae]
Magdalis striaticeps, Wickham 1911 [Rhynchitidae]
Magdalis violacea (Linnaeus 1758) [Curculionidae]
Magdoceras [Tarphycerida]
Magella [Terebratellidae]
Magella australis (Buckman 1910) [Terebratellidae]
Magellania, Bayle 1880 [Terebratellidae]
Magellania ameghinoi, Ihering 1903 [Terebratellidae]
Magellania antarctica (Buckman 1910) [Terebratellidae]
Magellania antarcticus, Buckman 1910 [unclassified species]
Magellania australis, Quoy and Gaimard 1835 [Terebratellidae]
Magellania flavescens (Lamarck 1819) [unclassified species]
Magellania hantkeni, Meznerics 1944 [unclassified species]
Magellania iredalei, Allan 1939 [Terebratellidae]
Magellania kerguelensis, Davidson 1878 [Terebratellidae]
Magellania lenticularis (Deshayes 1839) [unclassified species]
Magellania lenticularis innaiensis, Hayasaka 1922 [unclassified subspecies]
Magellania lenticularis tenuis, Hayasaka 1922 [unclassified subspecies]
Magellania magna, Hamilton 1910 [unclassified species]
Magellania marshalli, Andrew 1906 [Terebratellidae]
Magellania patagonica (Sowerby 1846) [Terebratellidae]
Magellania venosa, Solander 1789 [Terebratellidae]
Magellania venosa kerguelensis (Davidson 1878) [Terebratellidae]
Magellania wyvillei, Davidson 1878 [Terebratellidae]
Magellaniinae, subfamily, Beecher 1893 [Terebratellidae]
Magelonidae, family, Cunningham and Ramage 1888 [Spionida]
Magerictis, Ginsburg et al. 1997 [Ailuridae]
Magerictis imperialensis, Ginsburg et al. 1997 [Ailuridae]
Magericyon, Peigné et al. 2008 [unclassified genus]
Magericyon anceps, Peigné et al. 2008 [unclassified species]
Magericyon castellanus (Fraile 1997) [unclassified species]
Magharina, Arkell 1952 [Oppeliidae]
Magharina magharensis, Arkell 1952 [Oppeliidae]
Magharithyris [Terebratulida]
Magharithyris triplicata, Farag and Gatinaud 1960 [Terebratulida]
Maghrebeis [Ostracoda]
Maghrebella, Freneix 1972 [Carditidae]
Maghrebinia, Below 1981 [Ceratocoryaceae]
Maghrebites, Pons 2012 [Radiolitidae]
Maghrebocystis, Chauvel [unclassified genus]
Maghrebocystis pachytheca, Chauvel 1966 [unclassified species]
Magiarosaurus (Huene 1932) [Reptilia]
Magicostrophia [Chilidiopsidae]
Magila, Munster 1839 [Axiidae]
Magila denticulata, Munster 1839 [Axiidae]
Magila desmarestii, Munster 1839 [Axiidae]
Magila dissimilis, Carter 1886 [Axiidae]
Magila dura, Moericke 1889 [Axiidae]
Magila latimana, Munster 1839 [Axiidae]
Magila levimana, Carter 1886 [Axiidae]
Magila parvula, Oppel 1862 [Axiidae]
Magila pichleri, Oppel 1862 [Axiidae]
Magila rougemonti, Tribolet 1873 [Axiidae]
Magila straeleni, Patrulius 1959 [Axiidae]
Magilidae, family, Thiele 1925 [Muricidae]
Magilus, Monfort 1810 [Magilidae]
Magilus antiquus, Montfort 1810 [Magilidae]
Magnacephalus, Stitt 1971 [Ptychopariida]
Magnacicadia, Hong and Chen 1981 [Magnacicadiidae]
Magnacicadia shaanxiensis, Hong and Chen 1981 [Magnacicadiidae]
Magnacicadiidae, family, Hong and Chen 1981 [Hemiptera]
Magnadapis, Godinot and Couette 2008 [Adapidae]
Magnadapis fredi, Godinot and Couette 2008 [Adapidae]
Magnadapis intermedius, Godinot and Couette 2008 [Adapidae]
Magnadapis laurenceae, Godinot and Couette 2008 [Adapidae]
Magnadapis quercyi, Godinot and Couette 2008 [Adapidae]
Magnapaulia, Prieto-Marquez et al. 2012 [Hadrosauridae]
Magnapaulia laticaudus (Morris 1981) [Hadrosauridae]
Magnaperiporites, González-Guzmán 1967 [unclassified genus]
Magnaperiporites spinosus, González-Guzmán 1967 [Magnaperiporites]
Magnaranea, Hong 1985 [Araneidae]
Magnaranea furva, Hong 1985 [Araneidae]
Magnastriatites, Germeraad et al. 1968 [Filicopsida]
Magnastriatites howardi, Germeraad et al. 1968 [Filicopsida]
Magnasupplephlebia, Zessin 1982 [Odonata]
Magnasupplephlebia intercalaria, Zessin and Ansorge 1987 [Odonata]
Magnasupplephlebia kallweita, Zessin 1982 [Odonata]
Magnathemidae, family, Bechly 2010 [Odonata]
Magnathemis, Bechly 2010 [Magnathemidae]
Magnathemis marcusthorhalli, Bechly 2010 [Magnathemidae]
Magnatica (Marwick 1924) [Naticidae]
Magnatica (Magnatica), Marwick 1924 [Naticidae]
Magnatica (Magnatica) globosa, Abbass 1967 [Naticidae]
Magnatica (Spelaenacca) (Finlay 1930) [Naticidae]
Magnatica (Spelaenacca) sutherlandi (Marwick 1924) [Naticidae]
Magnatica planispira, H. Suter 1917 [Naticidae]
Magnatriporites, González-Guzmán 1967 [unclassified genus]
Magnatriporites abstractus, González-Guzmán 1967 [Magnatriporites]
Magnavicula, Iredale 1939 [Pteriidae]
Magnea [Cheilostomata]
Magnederella [Stenolaemata]
Magnella, Dittmer 1960 [Raphitomidae]
Magnella andersoni, Dittmer 1960 [Raphitomidae]
Magnentactinia, W 1997 [Entactiniidae]
Magnesoina [Foraminifera]
Magniberotha, Yuan et al. 2016 [Berothidae]
Magniberotha recurrens, Yuan et al. 2016 [Berothidae]
Magnicanalifera, Senowbari-Daryan et al. 2015 [Chaetetida]
Magnicanalifera lupensis, Senowbari-Daryan et al. 2015 [Chaetetida]
Magnicanalis, Rowell 1962 [Obolellidae]
Magnicapitatus, Wang 1980 [Neritopsidae]
Magnicapitatus angulus, Wang 1980 [Neritopsidae]
Magnicapitatus huazhangae, Sone 2010 [Neritopsidae]
Magnicapitatus latus, Pan 1983 [Neritopsidae]
Magnicapulus [Archaeogastropoda]
Magniderbyia, Jin and Ye 1979 [Orthotetidae]
Magniderbyia dashizhaiensis, Lee and Gu 1980 [Orthotetidae]
Magniderbyia guangdongensis, Ni 1977 [Derbyiidae]
Magniderbyia lata, Zhan 1979 [Derbyiidae]
Magniderbyia magnifica (Licharew 1939) [Orthotetidae]
Magnilens, Vea and Grimaldi 2015 [Hemiptera]
Magnilens glaesaria, Vea and Grimaldi 2015 [Hemiptera]
Magnimus, Sigogneau-Russell 1999 [Mammalia]
Magnimus ensomi, Sigogneau-Russell 1999 [Mammalia]
Magniplicatina, Waterhouse 1983 [Monticuliferidae]
Magniplicatina fragosa, Cooper and Grant 1975 [unclassified species]
Magniplicatina gigantea, Shen et al. 2003 [Monticuliferidae]
Magniplicatina halli (Waterhouse 1982) [Monticuliferidae]
Magniplicatina inassueta (Reed 1925) [Monticuliferidae]
Magniplicatina janischewskiana, Stepanov 1934 [unclassified species]
Magniplicatina johannis, Angiolini 1995 [Monticuliferidae]
Magniplicatina khubsugulensis (Lazarev 1991) [Monticuliferidae]
Magniplicatina magniplica (Campbell 1953) [Monticuliferidae]
Magniplicatina perflecta, Waterhouse 1986 [Monticuliferidae]
Magniplicatina planumbona, Cooper and Grant 1975 [unclassified species]
Magniplicatina rugosa (Cloud 1944) [Linoproductidae]
Magniplicatina sparsispinosa (Cooper and Grant 1975) [Linoproductidae]
Magniplicatina superba, Waterhouse 1986 [Monticuliferidae]
Magniplicatina transversa, Briggs 1998 [Monticuliferidae]
Magniplicatina undulata, Waterhouse 1986 [Monticuliferidae]
Magniplicatina vindicata (Reed 1925) [Monticuliferidae]
Magnirabus, Hong and Wang 1990 [Carabidae]
Magnirabus furvus, Hong and Wang 1990 [Carabidae]
Magnirostris, You and Dong 2003 [Protoceratopsidae]
Magnirostris dodsoni, You and Dong 2003 [Protoceratopsidae]
Magniscapa, Shcherbakov 2015 [Sheimiidae]
Magniscapa alligans (Aristov and Rasnitsyn 2008) [Sheimiidae]
Magniscarabaeus, Hong 1983 [Scarabaeidae]
Magniscarabaeus brunneus, Hong 1985 [Scarabaeidae]
Magniscarabaeus furvus, Hong 1983 [Scarabaeidae]
Magnisphaera, Won 1997 [Entactiniidae]
Magnithyris, Sahni 1925 [unclassified genus]
Magnithyris magna, Sahni 1925 [unclassified species]
Magniventra [Leptostrophiidae]
Magnoavipes, Lee 1997 [Ornithomimipodidae]
Magnoavipes caneeri, Lockley et al. 2001 [Ornithomimipodidae]
Magnoavipes lowei, Lee 1997 [Ornithomimipodidae]
Magnocoleidae, family, Hong 1998 [Coleoptera]
Magnocoleus, Hong 1998 [Magnocoleidae]
Magnocoleus huangjiapuensis, Hong 1998 [Magnocoleidae]
Magnogasterites, Hong 2002 [Formicidae]
Magnogasterites curticornutus, Hong 2002 [Formicidae]
Magnolia, C. Linnaeus [Magnoliaceae]
Magnolia californica, Lesquereux 1878 [unclassified species]
Magnolia culveri, Knowlton 1899 [unclassified species]
Magnolia dayana, Cockerell 1910 [unclassified species]
Magnolia microphylla, Knowlton 1899 [unclassified species]
Magnolia pollardi, Knowlton 1899 [unclassified species]
Magnolia spectabilis, Knowlton 1899 [unclassified species]
Magnoliaceae, family, A. L. de Jussieu 1789 [Magnoliales]
Magnoliales, order, A. L. Jussieu 1820 [Magnoliopsida]
Magnolidra, superclass [Anthophytatae]
Magnoliid, Jud 2011 [Magnoliopsida]
Magnoliidae, subclass [Magnoliopsida]
Magnoliidaephyllum, Zastawniak 1994 [unclassified genus]
Magnoliidaephyllum birkenmajeri, Zastawniak 1994 [Magnoliidaephyllum]
Magnoliophyceae, class [Spermatophyta]
Magnoliophyta, phylum, Cronquist et al. [Cycadophytanae]
Magnoliopsida, class, Cronquist et al. 1996 [Spermatophyta]
Magnolobia, Kurushin and Truschelev 2001 [Posidoniidae]
Magnomma, Lu and Qian 1983 [Ptychopariida]
Magnosaurus, Huene 1932 [Megalosaurinidae]
Magnosaurus lydekkeri (Huene 1926) [Reptilia]
Magnosaurus nethercombensis (Huene 1923) [Megalosaurinidae]
Magnosaurus oxoniensis (Walker 1964) [Megalosaurinidae]
Magnosaurus woodwardi, Huene 1932 [Reptilia]
Magnosia [Arbaciidae]
Magnosinister, Laseron 1954 [Triphoridae]
Magnotetradites, Van der Hammen and Garcia de Mutis 1966 [unclassified genus]
Magnotetradites magnus (Van der Hammen and Garcia de Mutis 1966) [Magnotetradites]
Magnumbonella, Carter 1968 [Productidae]
Magnuscrinus, Ausich and Kammer 2010 [Batocrinidae]
Magnuviator, DeMar et al. 2017 [Squamata]
Magnuviator ovimonsensis, DeMar et al. 2017 [Squamata]
Magrebarcta, Shcherbakov 2008 [Tettigarctidae]
Magrebarcta africana (Nel et al. 1998) [Tettigarctidae]
Magrebichthys, Murray and Wilson 2014 [Pycnosteroididae]
Magrebichthys nelsoni, Murray and Wilson 2014 [Pycnosteroididae]
Magumma, Matthews 1925 [unclassified genus]
Magumma parva (Stejneger 1887) [unclassified species]
Maguviopseidae, family, Shcherbakov 2011 [Hemiptera]
Maguviopseinae, subfamily, Shcherbakov 2011 [Maguviopseidae]
Maguviopseini, tribe, Shcherbakov 2011 [Maguviopseidae]
Maguviopsis, Becker-Migdisova 1953 [Maguviopseidae]
Maguviopsis kotchnevi, Becker-Migdisova 1953 [Maguviopseidae]
Magwetherium, Ducrocq et al. 2016 [Diacodexeidae]
Magwetherium burmense, Ducrocq et al. 2016 [Diacodexeidae]
Magyarcarcinus, C. Schweitzer and Karasawa 2004 [Goneplacidae]
Magyarcarcinus loczanus, Lorenthey 1898 [Goneplacidae]
Magyarosaurus, Huene 1932 [Reptilia]
Magyarosaurus dacus (Nopcsa 1915) [Reptilia]
Magyarosaurus hungaricus, Huene 1932 [Reptilia]
Magyarosaurus transsylvanicus, Huene 1932 [Reptilia]
Magyarosaurus transylvanicus (Huene 1932) [Reptilia]
Magyarosuchus, Osi et al. 2018 [unclassified genus]
Magyarosuchus fitosi, Osi et al. 2018 [unclassified species]
Mahaiella, Yin 1983 [Proetida]
Mahajangasuchidae, family, Sereno and Larsson 2009 [Reptilia]
Mahajangasuchini, tribe, Carvalho et al. 2004 [Peirosauridae]
Mahajangasuchus, Buckley and Brochu 1999 [Mahajangasuchidae]
Mahajangasuchus insignis, Buckley and Brochu 1999 [Mahajangasuchidae]
Mahajangina, Kiel 2006 [Gastropoda]
Mahajangina weitschati, Kiel 2006 [Gastropoda]
Mahakala, Turner et al. 2007 [Dromaeosauridae]
Mahakala omnogovae, Turner et al. 2007 [Dromaeosauridae]
Mahavisaurus, Lehman 1966 [Rhytidosteidae]
Mahavisaurus australis (Lehman 1966) [Rhytidosteidae]
Mahavisaurus dentatus, Lehman 1966 [Rhytidosteidae]
Mahgarita, Wilson and Szalay 1976 [Primates]
Mahgarita stevensi (Wilson and Szalay 1976) [Primates]
Mahonia, T. Nuttall 1818 [Berberidaceae]
Mahonia lobodonta, Becker 1959 [unclassified species]
Mahonia mohavensis, Axelrod 1939 [unclassified species]
Mahoningoceras [Nautilida]
Maia (Lamarck 1801) [Crustacea]
Maia spinosissima, Lamarck 1818 [Majidae]
Maiabalaena, Peredo et al. 2018 [unclassified genus]
Maiabalaena nesbittae, Peredo et al. 2018 [unclassified species]
Maiacetus, Gingerich et al. 2009 [Protocetidae]
Maiacetus inuus, Gingerich et al. 2009 [Protocetidae]
Maiandrocyathus [Archaeocyathida]
Maiasaura, Horner and Makela 1979 [Hadrosauridae]
Maiasaura peeblesorum, Horner and Makela 1979 [Hadrosauridae]
Maiasaurinae, subfamily, Horner 1992 [Hadrosauridae]
Maiaspis, Chernysheva 1956 [Ptychopariida]
Maiaspis blandita, Rozova 1964 [Ptychopariida]
Maiaspis mirabilis, Chernysheva 1956 [Ptychopariida]
Maiaspis quadrata, Chernysheva 1956 [Ptychopariida]
Maiaspondylus, Maxwell and Caldwell 2006 [Ophthalmosauridae]
Maiaspondylus lindoei, Maxwell and Caldwell 2006 [Ophthalmosauridae]
Maichelasma, Fomichev 1953 [Polycoeliidae]
Maichelina [Foraminifera]
Maideroceras, Becker 2002 [Sporadoceratidae]
Maideroceras muelleri, Becker 2002 [Sporadoceratidae]
Maideroceras sapiens (Korn 1999) [Sporadoceratidae]
Maidipingoconus, Yü 1979 [Helcionellidae]
Maidipingoconus lata, Chen et al. 1981 [Helcionellidae]
Maidipingoconus maidipingensis (Yü 1974) [Helcionellidae]
Maidipingoconus orientalis, Chen et al. 1981 [Helcionellidae]
Maikhanella, Voronin et al. 1982 [Maikhanellidae]
Maikhanella calvata (Luo et al. 1982) [Maikhanellidae]
Maikhanella cambrina (Luo et al. 1982) [Maikhanellidae]
Maikhanella layracensis, Kerber 1988 [Maikhanellidae]
Maikhanella lepidites, He and Yang 1982 [Maikhanellidae]
Maikhanella multa, Voronin et al. 1982 [Maikhanellidae]
Maikhanella perelegans, Feng et al. 2001 [Maikhanellidae]
Maikhanella pristinis (Jiang 1980) [Maikhanellidae]
Maikhanella radularis (Qian and Bengtson 1989) [Maikhanellidae]
Maikhanellidae, family, Missarzhevsky 1989 [Mollusca]
Maikhanellinae, subfamily, Feng et al. 2001 [Maikhanellidae]
Maikottaphyllum, Lavrusevich 1968 [Kyphophyllidae]
Maikottia, Lavrusevich 1967 [Tryplasmatidae]
Mailonia, Kalugina 1985 [Chironomidae]
Mailonia pallida, Kalugina 1985 [Chironomidae]
Mailotrichocera, Kalugina 1985 [Trichoceridae]
Mailotrichocera gracilis, Krzemińska et al. 2009 [Trichoceridae]
Mailotrichocera jurassica, Kalugina 1985 [Trichoceridae]
Mailotrichocera mikereichi, Krzemińska et al. 2009 [Trichoceridae]
Mailotrichocera ovifera, Krzemińska et al. 2009 [Trichoceridae]
Mailotrichocera praedicta, Krzeminska and Lukashevich 2018 [unclassified species]
Mailotrichocera prisca, Krzemińska et al. 2009 [Trichoceridae]
Mailotrichocera sukachevae, Krzemińska et al. 2009 [Trichoceridae]
Mailotrichocera variabilis, Krzemińska et al. 2009 [Trichoceridae]
Mailotrichocera zessini, Krzemińska et al. 2009 [Trichoceridae]
Maimetsha, Rasnitsyn 1975 [Maimetshidae]
Maimetsha artica, Rasnitsyn 1975 [Maimetshidae]
Maimetshasia, Perrichot 2013 [Maimetshidae]
Maimetshasia kachinensis, Perrichot 2013 [Maimetshidae]
Maimetshidae, family, Rasnitsyn 1975 [Hymenoptera]
Maimetshinae, subfamily, Rasnitsyn 1975 [Maimetshidae]
Maimetshini, tribe, Rasnitsyn 1975 [Maimetshidae]
Maimetshorapia, Rasnitsyn and Brothers 2009 [Maimetshidae]
Maimetshorapia africana, Rasnitsyn and Brothers 2009 [Maimetshidae]
Maimon, Trouessart 1904 [unclassified genus]
Maingrapsus, Tessier 1999 [Litocheiridae]
Maingrapsus quadratus, Tessier 1999 [Litocheiridae]
Mainhepatiscus, De Angeli and Beschin 1999 [Aethridae]
Mainhepatiscus zannatoi, De Angeli and Beschin 1999 [Aethridae]
Maiocercus, Pocock 1911 [Anthracomartidae]
Maiocercus carbonis (Pocock 1902) [Anthracomartidae]
Maiocercus celticus (Pocock 1902) [Anthracomartidae]
Maiocercus orbicularis, Gill 1911 [Anthracomartidae]
Maioidea, superfamily, Stimpson 1862 [Decapoda]
Maiopatagium, Meng et al. 2017 [unclassified genus]
Maiopatagium furculiferum, Meng et al. 2017 [unclassified species]
Maiorana, Van Valen 1978 [Periptychidae]
Maiorana ferrisensis, Eberle and Lillegraven 1998 [Periptychidae]
Maiorana noctiluca, Van Valen 1978 [Periptychidae]
Maioteuthis [Teuthida]
Maishucunconus [Helcionellidae]
Maishucunconus campylurus, Jiang 1980 [Helcionellidae]
Maitaia [Atomodesmatidae]
Maitaia (Mytilidesmatella) (Waterhouse 1979) [Atomodesmatidae]
Maitaia (Mytilidesmatella) acuta (Lutkevitch and Lobanova 1960) [Atomodesmatidae]
Maitaia absoluta, Astafieva 1989 [Atomodesmatidae]
Maitaia acuta (Lutkevitch and Lobanova 1960) [Atomodesmatidae]
Maitaia aenigma, Astafieva 1989 [Atomodesmatidae]
Maitaia alitis, Astafieva 1989 [Kolymiidae]
Maitaia bella, Biakov 1992 [Atomodesmatidae]
Maitaia belliformis, Biakov 1992 [Atomodesmatidae]
Maitaia errabunda (Popov 1964) [Atomodesmatidae]
Maitaia gigantea (De Koninck 1877) [Atomodesmatidae]
Maitaia hurenensis, Biakov 1992 [Atomodesmatidae]
Maitaia kolymiaformis, Biakov 1992 [Atomodesmatidae]
Maitaia kusnezovi, Biakov 2013 [Atomodesmatidae]
Maitaia lobanovae, Astafieva 1989 [Atomodesmatidae]
Maitaia orulganica, Biakov 2013 [Atomodesmatidae]
Maitaia pogorevitschi (Muromtseva and Guskov 1984) [Atomodesmatidae]
Maitaia pogorewitschi (Muromtseva and Guskov 1984) [Atomodesmatidae]
Maitaia regularicostatum, Biakov 2013 [Atomodesmatidae]
Maitaia sinevensis, Biakov 1992 [Atomodesmatidae]
Maitaia tenkensis, Biakov 1999 [Atomodesmatidae]
Maitaia tobonnoensis, Biakov 2013 [Atomodesmatidae]
Maitaia trechmanni, Marwick 1934 [Atomodesmatidae]
Maitaia varvarae, Biakov 1992 [Atomodesmatidae]
Maitaia vedernikovi, Biakov 2013 [Atomodesmatidae]
Maizania, Bourguignat 1889 [Maizaniidae]
Maizaniidae, family, Tielecke 1940 [Architaenioglossa]
Maizassionis [Palaeocopida]
Maja, Lamarck 1801 [Crustacea]
Maja aquinado, Herbst 1788 [Maja]
Maja arambourgi, Van Straelen 1936 [Maja]
Maja austriaca, Bachmayer 1953 [Maja]
Maja biaensis, Lorenthey 1929 [Maja]
Maja crispata, Risso 1826 [Maja]
Maja dominoleuae, Hu and Tao 1826 [Maja]
Maja hungarica, Lorenthey 1929 [Maja]
Maja laddi, Rathbun 1934 [Maja]
Maja miocaenica, Lorenthey 1907 [Maja]
Maja morii, Kato 1996 [Maja]
Maja orbigniana, Millet 1854 [Maja]
Maja oroszyi, Bachmayer 1953 [Maja]
Maja robinsoni, Jenkins 1985 [Maja]
Maja squinado (Herbst 1788) [unclassified species]
Maja tomidai, Kato 2002 [Maja]
Majatheca, Rozanov et al. 1969 [Allathecidae]
Majatheca tumefacta, Rozanov et al. 1969 [Allathecidae]
Majiangia, Lu and Qian 1983 [Corynexochida]
Majiaobaphyllum [Anthozoa]
Majiashanella [Ostracoda]
Majiashanosaurus, Jiang et al. 2014 [unclassified genus]
Majiashanosaurus discocoracoidis, Jiang et al. 2014 [unclassified species]
Majidae, family, G. Samouelle 1819 [Decapoda]
Majiinae, subfamily, Samouelle 1819 [Majidae]
Majinae, subfamily, Samouelle 1819 [Majidae]
Majkhanella (Voronin et al. 1982) [Maikhanellidae]
Majkopella [Diplospirellidae]
Majkopella manzavini (Bittner 1891) [Diplospirellidae]
Majkopella slavini, Dagys 1962 [Diplospirellidae]
Majkopella worobievi (Moisseiev 1947) [Diplospirellidae]
Majoceras [Intejocerida]
Majoidea, superfamily, Samouelle 1819 [Decapoda]
Majoria, Thomas 1915 [Mammalia]
Majoria rapeto, Thomas 1915 [Mammalia]
Majungaella [Podocopida]
Majungasaurinae, subfamily, Tortosa et al. 2013 [Abelisauridae]
Majungasaurus, Lavocat 1955 [Abelisauridae]
Majungasaurus crenatissimus (Depéret 1896) [Abelisauridae]
Majungatholus, H.-D. Sues and P. Taquet 1979 [Abelisauridae]
Majungatholus athopus (Sues and Taquet 1979) [Abelisauridae]
Majungatholus atopus, Sues and Taquet 1979 [Abelisauridae]
Makahala, Mayr 2015 [unclassified genus]
Makahala mirae, Mayr 2015 [unclassified species]
Makaira, Lacépčde 1802 [Scombridae]
Makaira indica (Cuvier 1832) [Scombridae]
Makaira nigricans, Lacépčde 1802 [Scombridae]
Makaira panamensis, Fierstine 1978 [unclassified species]
Makaira purdyi, Fierstine 1999 [Scombridae]
Makalata, Husson 1978 [Echimyidae]
Makalata armata (I. Geoffroy 1838) [Echimyidae]
Makalata carrikeri (Allen 1911) [Echimyidae]
Makalata castanea (Allen and Chapman 1897) [Echimyidae]
Makalata didelphoides (Desmarest 1817) [Echimyidae]
Makalata flavida (Hollister 1914) [Echimyidae]
Makalata guianae (Thomas 1888) [Echimyidae]
Makalata longirostris (Anthony 1921) [Echimyidae]
Makalata macrura (Wagner 1842) [Echimyidae]
Makalata obscura (Wagner 1840) [Echimyidae]
Makalata occasius (Thomas 1921) [Echimyidae]
Makalata punctatus (Thomas 1899) [Echimyidae]
Makalata rhipidura (Thomas 1928) [Echimyidae]
Makalata semivillosa (I. Geoffroy 1838) [Echimyidae]
Makapania, Wells and Cooke 1957 [Bovidae]
Makapania broomi, Wells and Cooke 1956 [unclassified species]
Makaracetinae, subfamily, Gingerich et al. 2005 [Protocetidae]
Makaracetus, Gingerich et al. 2005 [Protocetidae]
Makaracetus bidens, Gingerich et al. 2005 [Protocetidae]
Makarakia [Mollusca]
Makarkinia, Martins-Neto 1997 [Kalligrammatidae]
Makarkinia adamsi (Martins-Neto 1992) [Kalligrammatidae]
Makarkinia kerneri, Bechly and Makarkin 2016 [Kalligrammatidae]
Makarkinidae, family (Martins-Neto 1997) [Neuroptera]
Makarkiniidae, family (Martins-Neto 1997) [Neuroptera]
Makarkiniinae, subfamily, Martins-Neto 1997 [Neuroptera]
Makarskiana [Foraminifera]
Makhaira, Fischer et al. 2015 [Pliosauridae]
Makhaira rossica, Fischer et al. 2015 [Pliosauridae]
Maki, Muirhead 1819 [Lemuridae]
Makiyama [Poecilosclerida]
Makiyamaia, MacNeil 1960 [Turridae]
Makiyamaia coreanica (Adams and Reeve 1850) [Turridae]
Makiyamaia decorata, Oleinik 1991 [Turridae]
Maklaya [Neoschwagerinidae]
Maklaya zarodensis (Sosnina 1965) [Neoschwagerinidae]
Makoiamya, Grant-Mackie 2013 [Ceratomyidae]
Makoiamya cotterallae, Grant-Mackie 2013 [Ceratomyidae]
Makowskia, Klembara 2005 [Discosauriscidae]
Makowskia laticephala, Klembara 2005 [Discosauriscidae]
Makridinirhynchia [Tetrarhynchiidae]
Makridinophyllia, Kuzmicheva 1987 [Dendrophylliidae]
Makridinophyllia makridini, Kuzmicheva 1987 [Dendrophylliidae]
Makromuktis, Phleger 1936 [unclassified genus]
Maksika, Mostovski 1999 [Phoridae]
Maksika dvija, Mostovski 1999 [Phoridae]
Maksika intermedia (Brown and Pike 1990) [Phoridae]
Malacanthidae, family [Actinopteri]
Malachidae, family (Fleming 1821) [Melyridae]
Malachiidae, family (Fleming 1821) [Melyridae]
Malachiinae, subfamily (Fleming 1821) [Melyridae]
Malachiini, tribe, Fleming 1821 [Melyridae]
Malachius, Fabricius 1775 [Melyridae]
Malachius immurus, Wickham 1917 [Melyridae]
Malachius pristinus, Wickham 1916 [Melyridae]
Malachius vertummni, Heer 1847 [Melyridae]
Malachiusidae, family, Fleming 1821 [Melyridae]
Malaclemys, Gray 1844 [Emydidae]
Malaclemys terrapin (Schoepff 1793) [Emydidae]
Malacobagrus, P. Bleeker 1862 [unclassified genus]
Malacochersus, Lindholm 1929 [unclassified genus]
Malacochersus tornieri, Siebenrock 1903 [unclassified species]
Malacoclemmys, Gray 1844 [unclassified genus]
Malacoclemmys kohnii, G. Baur 1890 [Emydidae]
Malacocottus, Bean 1890 [Scorpaeniformes]
Malacodermi, family, Latreille 1802 [Coleoptera]
Malacodermidae, family [Coleoptera]
Malacopsephenoides, Jeng and Sato 2009 [unclassified genus]
Malacopsephenoides japonicus (Matsuda 1935) [unclassified species]
Malacopterygii [unclassified]
Malacoptila, Gray 1841 [unclassified genus]
Malacopus, Stal 1860 [Reduviidae]
Malacopus wygodzinskyi, Popov 1987 [Reduviidae]
Malacopygaeus, Leriche 1906 [Perciformes]
Malacopygaeus oblongus, Agassiz 1838 [Perciformes]
Malacorhina, Garman 1877 [Rajidae]
Malacorhynchus, Swainson 1831 [unclassified genus]
Malacorhynchus membranaceus (Latham 1801) [unclassified species]
Malacorhynchus scarletti, Olson 1977 [unclassified species]
Malacostega, suborder, Levinsen 1902 [Cheilostomata]
Malacostegina, suborder, Levinsen 1902 [Cheilostomata]
Malacosteidae, family [Iniomi]
Malacostraca, class (Latreille 1802) [Crustacea]
Malacostraca, subclass, Latreille 1802 [Crustacea]
Malacothrix, Wagner 1843 [Nesomyidae]
Maladera, Mulsant 1871 [Scarabaeidae]
Maladera spinitibialis, Statz 1952 [Scarabaeidae]
Maladia, Rose 1983 [Eurekiidae]
Maladioidella, Endo 1937 [Idahoiidae]
Maladioidella hunanensis, Peng 1992 [Idahoiidae]
Maladioidella laevigata (Zhang 1981) [Idahoiidae]
Maladioidella splendens, Endo 1937 [Idahoiidae]
Maladioides, Kobayashi 1933 [Elviniidae]
Maladioides qinlingensis, Yang et al. 1993 [Elviniidae]
Malagastrigonia [Trigoniida]
Malaiocrinus, Wanner 1924 [Cladida]
Malakhelisaurus, Malkani 2008 [Reptilia]
Malakhelisaurus mianwali (Malkani 2007) [Reptilia]
Malapoenna [Lauraceae]
Malapoenna lamarensis, Knowlton 1899 [unclassified species]
Malapoenna weediana, F.H. Knowlton 1898 [unclassified species]
Malapteruridae, family [Siluriformes]
Malapterus, Gmelin 1789 [unclassified genus]
Malaquiferus, Gazin 1955 [Oromerycidae]
Malaquiferus tourteloti, Gazin 1955 [Oromerycidae]
Malarguesaurus, González Riga et al. 2009 [Reptilia]
Malarguesaurus florenciae, González Riga et al. 2009 [Reptilia]
Malasaurus, Malkani 2007 [Reptilia]
Malasaurus, Tatarinov 2002 [unclassified genus]
Malasaurus germanus, Tatarinov 2002 [unclassified species]
Malasaurus mianwali, Malkani 2007 [Reptilia]
Malawania, Fischer et al. 2013 [Ichthyopterygia]
Malawania anachronus, Fischer et al. 2013 [Ichthyopterygia]
Malawimonas, O'Kelly and Nerad 1999 [Excavata]
Malawisaurus, Jacobs et al. 1993 [Reptilia]
Malawisaurus dixeyi (Haughton 1928) [Reptilia]
Malawisuchus, Gomani 1997 [Reptilia]
Malawisuchus mwakasyungutiensis, Gomani 1997 [Reptilia]
Malawisuchus mwakayasyunguti (Gomani 1997) [Reptilia]
Malayanoplia [Anopliidae]
Malayaspira, Kobayashi 1958 [Ophiletidae]
Malayaspira affinis, Billings 1865 [unclassified species]
Malayaspira annulata (C.D. Walcott 1884) [Ophiletidae]
Malayaspira bella (Billings 1865) [Ophiletidae]
Malayaspira cannigense, Yu 1993 [unclassified species]
Malayaspira cannignense, Yu 1993 [unclassified species]
Malayaspira canningense (Yu 1993) [Ophiletidae]
Malayaspira hintzei, Rohr 1994 [Ophiletidae]
Malayaspira perkinsi (Whitfield 1890) [Ophiletidae]
Malayaspira rugosa, Kobayashi 1958 [Ophiletidae]
Malayaspira speciosa (Billings 1865) [Ophiletidae]
Malayemys, Lindholm 1931 [unclassified genus]
Malayemys subtrijuga, Schlegel and Muller 1844 [unclassified species]
Malayites, O. Welter 1914 [Juvavitidae]
Malayites bococki (McLearn 1937) [Juvavitidae]
Malayites butleri (McLearn 1940) [Juvavitidae]
Malayites dawsoni, McLearn 1937 [Juvavitidae]
Malayites grobbeni (Diener 1921) [Juvavitidae]
Malayites informis, Welter 1914 [Juvavitidae]
Malayites sundaicus, Welter 1914 [Juvavitidae]
Malayites tingriensis (Wang and He 1976) [Juvavitidae]
Malayomaorica, Jeletzky 1963 [Buchiidae]
Malayomaorica malayomaorica (L. Krumbeck 1923) [Buchiidae]
Malbalnella, Korotkov 1994 [Pseudomelaniidae]
Malbosiceras, Grigorieva 1938 [Neocomitidae]
Malbosiceras asper (Mazenot 1939) [Himalayitidae]
Malchiblastus [Spiraculata]
Malchinini, tribe, Brancucci 1980 [Cantharidae]
Malchinus, Kiesenwetter 1863 [Cantharidae]
Malchinus kryshtofovichi, Yablokov-Khnzorian 1960 [Cantharidae]
Maldanidae, family, Malmgren 1867 [Polychaeta]
Maldeotaia, Singh and Shukla 1981 [Protoconodonta]
Maldeotaia bandalica, Singh and Shukla 1981 [Protoconodonta]
Maldeotaina, Flügel and Singh 2003 [Stromatoporoidea]
Maldeotaina composita, Flügel and Singh 2003 [Stromatoporoidea]
Maldivia, Borradaile 1902 [Trapeziidae]
Maldivia plana, Muller 1996 [Trapeziidae]
Maldybulakia, Tesakov and Alekseev 1998 [Xiphosura]
Maldybulakia angusi, Edgecombe 1998 [Xiphosura]
Maldybulakia malcolmi, Edgecombe 1998 [Xiphosura]
Malea, Valenciennes 1833 [Tonnidae]
Malea beui, Landau and Marques da Silva 2010 [Tonnidae]
Malea camura, Guppy 1866 [Tonnidae]
Malea camura elliptica (Pilsbry and Johnston 1917) [Tonnidae]
Malea densecostata (Rustch 1934) [Tonnidae]
Malea elliptica, Pilsbry and Johnston 1917 [Tonnidae]
Malea goliath, Pilsbry and Johnson 1917 [Tonnidae]
Malea mareana (Weisbord 1962) [Tonnidae]
Malea petiti, Petuch 1989 [Tonnidae]
Malea pomum (Linnaeus 1758) [Tonnidae]
Malea quilonensis, Dey 1961 [Tonnidae]
Malea ringens (Swainson 1822) [Tonnidae]
Malea ringens mareana, Weisbord 1962 [Tonnidae]
Malea springi, Petuch 1989 [Tonnidae]
Maledictosuchus, Parrilla-Bel et al. 2013 [Metriorhynchidae]
Maledictosuchus riclaensis, Parrilla-Bel et al. 2013 [Metriorhynchidae]
Maleevosaurus, Carpenter 1992 [Tyrannosauridae]
Maleevosaurus novojilovi (Maleev 1955) [Tyrannosauridae]
Maleevus, Tumanova 1987 [Reptilia]
Maleevus disparoserratus (E. A. Maleev 1952) [Reptilia]
Malenavelia, Solórzano Kraemer and Perrichot 2014 [Mesoveliidae]
Malenavelia videris, Solórzano Kraemer and Perrichot 2014 [Mesoveliidae]
Maleojassus, Zeuner 1941 [Jassidae]
Maleojassus primitivus, Zeuner 1941 [Jassidae]
Malepellis, Petrunkevitch 1971 [Linyphiidae]
Malepellis extincta, Petrunkevitch 1971 [Linyphiidae]
Malerisaurus, Chatterjee 1980 [Protorosauridae]
Malerisaurus langstoni, Chatterjee 1986 [Reptilia]
Malerisaurus robinsonae, Chatterjee 1980 [Protorosauridae]
Malerosteus, Kulczycki 1957 [Arthrodira]
Malesherbiaceae, family, D. Don [Violales]
Malfattia, Meunier 1901 [Mymaridae]
Malfattia molitorae, Meunier 1901 [Mymaridae]
Malfelis, Stucky and Hardy 2007 [Oxyaenidae]
Malfelis badwaterensis, Stucky and Hardy 2007 [Oxyaenidae]
Malguzaria [Palaeocopida]
Maliamia, Patterson and Longbottom 1989 [Amiidae]
Maliamia gigas, Patterson and Longbottom 1989 [Amiidae]
Maligneocrinus, Laudon 1952 [Monobathrida]
Malimanininae, subfamily, Waterhouse 2001 [Atomodesmatidae]
Malinaspis, Andreeva 1985 [Ptychopariida]
Malinella, Andreeva 1982 [Orthida]
Malinella tavelensis, Andreeva 1982 [Orthida]
Malingichthys, Tintori et al. 2015 [Pholidophoridae]
Malingichthys nimaiguensis, Tintori et al. 2015 [Pholidophoridae]
Malingichthys wanfenglinensis, Tintori et al. 2015 [Pholidophoridae]
Malinowskiella [Demospongea]
Malladaia, Oehlert 1896 [Phacopida]
Malladaites [Hammatoceratidae]
Malladiceras, Fatml 1968 [Neocomitidae]
Mallagnostus, Howell 1935 [Weymouthiidae]
Mallanites, O'Dogherty 1994 [Actinommidae]
Malleator, Petrunkevitch 1942 [Theridiidae]
Malleator niger, Petrunkevitch 1942 [Theridiidae]
Mallecupes, Jarzembowski et al. 2017 [Cupedidae]
Mallecupes (Mallecupes), Jarzembowski et al. 2017 [unclassified subgenus]
Mallecupes (Mallecupes) qingqingae (Jarzembowski et al. 2017) [unclassified species]
Mallecupes (Mallecupoides), Jarzembowski et al. 2017 [unclassified subgenus]
Mallecupes (Mallecupoides) cleevelyi, Jarzembowski et al. 2017 [unclassified species]
Mallecupes qingqingae, Jarzembowski et al. 2017 [Cupedidae]
Malleia [Bouchardiidae]
Malleidae, family, Lamarck 1819 [Ostreida]
Malleidina, suborder, Gray 1854 [Ostreida]
Malleinae, subfamily, Lamarck 1818 [Malleidae]
Malleodectes, D. A. Arena et al. 2011 [unclassified genus]
Malleodectes mirabilis, Arena et al. 2011 [unclassified species]
Malleodectidae, family, Archer et al. 2016 [Cetacea]
Malleoidea, superfamily, Lamarck 1819 [Mytilida]
Malletia, des Moulins 1832 [Malletiidae]
Malletia (Tindaria) (Bellardi 1875) [Tindariidae]
Malletia (Tindaria) kennerlyi, Dall 1897 [Tindariidae]
Malletia abrupta (Conrad 1848) [Malletiidae]
Malletia chilensis, des Moulins 1832 [Malletiidae]
Malletia cuneata, Jeffreys 1876 [Malletiidae]
Malletia galatheae, Knudsen 1970 [Malletiidae]
Malletia gibbsii, Dall 1897 [Tindariidae]
Malletia gracilis, Wilckens 1905 [Malletiidae]
Malletia obtusa, Sars 1872 [Malletiidae]
Malletia ornata (Sowerby 1846) [Malletiidae]
Malletia pseudopraecursor, Kurushin 1985 [Malletiidae]
Malletia sabrina, Hedley 1916 [Malletiidae]
Malletia subaequalis (Sowerby 1870) [Malletiidae]
Malletiella, Soot-Ryen 1957 [Malletiidae]
Malletiidae, family, H. Adams and A. Adams 1858 [Nuculanida]
Malletioidea, superfamily, H. Adams and A. Adams 1857 [Nuculanida]
Malletophychites [Ptychitidae]
Malletoptychites, C. Diener 1916 [Ptychitidae]
Malletoptychites kotschetkovi, Popov 1961 [Ptychitidae]
Malletoptychites malletianus (Stoliczka 1865) [unclassified species]
Malleus, Lamarck 1799 [Malleidae]
Malleus (Malleus), Lamarck 1799 [Malleidae]
Malleus albus [Malleidae]
Mallochohelea, Wirth 1962 [Ceratopogonidae]
Mallochohelea martae, Szadziewski 2005 [Ceratopogonidae]
Malloproductus [Sentosiidae]
Malloranga, Lee et al. 2010 [unclassified genus]
Malloranga fouldenensis, Lee et al. 2010 [Malloranga]
Mallorcagryllus, Aristov and Zessin 2009 [Blattogryllidae]
Mallorcagryllus hispanicus, Aristov and Zessin 2009 [Blattogryllidae]
Mallotus, Cuvier 1829 [Actinopterygii]
Mallotus, Loureiro [Euphorbiaceae]
Mallotus riparius, MacGinitie 1941 [Euphorbiaceae]
Mallotus villosus (Muller 1776) [Mallotus]
Malluviospongia, Rigby and Goodbody 1986 [Astraeospongiidae]
Malluviospongia densa, Rigby and Goodbody 1986 [Astraeospongiidae]
Malluvium, Melvill 1906 [Hipponicidae]
Malmaeschnidium, Nel and Martínez-Delclňs 1993 [Aeschnidiidae]
Malmaeschnidium mayeri, Nel and Martínez-Delclňs 1993 [Aeschnidiidae]
Malmagrion, Handlirsch 1906 [Protomyrmeleontidae]
Malmagrion eichstaettensis (Hagen 1862) [Protomyrmeleontidae]
Malmagrion eichstattense (Hagen 1862) [Protomyrmeleontidae]
Malmagrion eichstattensis, Hagen 1862 [Protomyrmeleontidae]
Malmelater, Handlirsch 1906 [Schizophoridae]
Malmelater costeri (Weyenbergh 1869) [Schizophoridae]
Malmelater grossum (Weyenbergh 1869) [Schizophoridae]
Malmelater grossus (Weyenbergh 1869) [Schizophoridae]
Malmelater priscus (Oppenheim 1888) [Schizophoridae]
Malmelater teyleri (Weyenbergh 1869) [Schizophoridae]
Malmoblattina, Handlirsch 1906 [Blattaria]
Malmoblattina brodiei (Scudder 1886) [Blattaria]
Malmoblattina bucktoni (Scudder 1886) [Blattaria]
Malmoblattina hopei (Scudder 1886) [Blattaria]
Malmoblattina mantelli (Scudder 1886) [Blattaria]
Malmoblattina murrayi (Scudder 1886) [Blattaria]
Malmoblattina peachi (Scudder 1886) [Blattaria]
Malmocimbrophlebia, Bechly and Schweigart 2000 [Cimbrophlebiidae]
Malmocimbrophlebia buergeri, Bechly and Schweigart 2000 [Cimbrophlebiidae]
Malmomyrmeleon, Martínez-Delclňs and Nel 1996 [Protomyrmeleontidae]
Malmomyrmeleon viohli, Martínez-Delclňs and Nel 1996 [Protomyrmeleontidae]
Malmopsylla, Becker-Migdisova 1985 [Malmopsyllidae]
Malmopsylla karatavica, Becker-Migdisova 1985 [Malmopsyllidae]
Malmopsyllidae, family, Becker-Migdisova 1985 [Hemiptera]
Malmuncina, Schweigert and Garassino 2003 [Uncinidae]
Malmuncina wulfi, Schweigert and Garassino 2003 [Uncinidae]
Malmyzha, Novokshonov 1995 [Permochoristidae]
Malmyzha incompta, Novokshonov 1995 [Permochoristidae]
Malmyzhia, Aristov 2015 [Atactophlebiidae]
Malmyzhia kazanica, Aristov 2015 [Atactophlebiidae]
Malnina [Palaeocopida]
Malocystidae, family, Bather 1899 [unclassified family]
Malocystites, Billings 1858 [Platycystitida]
Malocystites barrandi, Billings 1858 [unclassified species]
Malocystites emmonsi, Hudson 1905 [unclassified species]
Malocystites murchisoni, Billings 1858 [unclassified species]
Malocystitidae, family (Bather 1899) [unclassified family]
Malongella, Chang 1974 [Archaeocopida]
Malongella bituberculata, Chang 1974 [unclassified species]
Malongitubus, Hu 2005 [unclassified genus]
Malongitubus kuangshanensis, Hu 2005 [Malongitubus]
Malongocephalus, Zhang et al. 1980 [Abadiellidae]
Malongocephalus yunnanensis, Zhang et al. 1980 [Abadiellidae]
Malongullia, Webby and Moors 1970 [Raphiophoridae]
Malongullospongia, Rigby and Webby 1988 [Anthaspidellidae]
Malongullospongia delicatula, Rigby and Webby 1988 [Anthaspidellidae]
Malonophyllum, Okulitch and Albritton 1937 [Lophophyllidiidae]
Malonophyllum kansasense, Moore and Jeffords 1941 [Lophophyllidiidae]
Malovicrinus [Crinoidea]
Malpaisia, Stevens and Stone 2009 [Durhaminidae]
Malpaisia maceyi, Stevens and Stone 2009 [Durhaminidae]
Malpighiaceae, family, A. L. de Jussieu 1789 [Polygalales]
Malpighiales, order, A. L. Jussieu 1820 [Magnoliopsida]
Malpolon, Fitzinger 1826 [Colubridae]
Malpolon mlynarskii, Szyndlar 1988 [Colubridae]
Malpolon monspessulanus (Hermann 1804) [Colubridae]
Maltaia, Cooper 1983 [Terebratulidae]
Maltaia maltensis, Cooper 1983 [unclassified species]
Maltamys, Zamit et al. 1982 [Gliridae]
Maltamys gollcheri, De Bruijn 1966 [Gliridae]
Maltamys wiedincitensis, Zamit et al. 1982 [Gliridae]
Malthacolestes, Simpson 1927 [Dryolestidae]
Malthacolestes osborni, Simpson 1927 [Dryolestidae]
Malthacus, Kirby 1837 [Cantharidae]
Malthininae, subfamily, Kiesenwetter 1852 [Cantharidae]
Malthinini, tribe, Kiesenwetter 1852 [Cantharidae]
Malthinus, Latreille 1806 [Cantharidae]
Malthinus (Malthinus), Latreille 1806 [Cantharidae]
Malthinus (Malthinus) danieli (Kuśka and Kania 2010) [Cantharidae]
Malthinus (Malthinus) rifbjergi, Fanti and Damgaard 2018 [unclassified species]
Malthinus danieli, Kuśka and Kania 2010 [Cantharidae]
Malthodes, Kiesenwetter 1852 [Cantharidae]
Malthodes (Malthodes), Kiesenwetter 1852 [Cantharidae]
Malthodes (Malthodes) ceranowiczae (Kuska and Kupryjanowicz 2005) [Cantharidae]
Malthodes (Malthodes) henningseni, Fanti and Damgaard 2018 [unclassified species]
Malthodes (Malthodes) josephi, Fanti and Pankowski 2018 [unclassified species]
Malthodes (Malthodes) kotejai (Kuska and Kupryjanowicz 2005) [Cantharidae]
Malthodes (Malthodes) meriae, Fanti 2018 [unclassified species]
Malthodes (Malthodes) moellehavei, Fanti and Damgaard 2018 [unclassified species]
Malthodes (Malthodes) obtusus (Förster 1891) [Cantharidae]
Malthodes (Malthodes) perkovskyi (Kazantsev 2010) [Cantharidae]
Malthodes (Malthodes) rovnoensis (Kazantsev and Perkovsky 2014) [Cantharidae]
Malthodes (Malthodes) serafini (Kuska and Kupryjanowicz 2005) [Cantharidae]
Malthodes (Malthodes) sucini (Kuśka and Kania 2010) [Cantharidae]
Malthodes caenozoicus, Fanti and Vitali 2017 [unclassified species]
Malthodes ceranowiczae, Kuska and Kupryjanowicz 2005 [Cantharidae]
Malthodes kotejai, Kuska and Kupryjanowicz 2005 [Cantharidae]
Malthodes michalskii, Fanti 2017 [Cantharidae]
Malthodes obtusus, Förster 1891 [Cantharidae]
Malthodes perkovskyi, Kazantsev 2010 [Cantharidae]
Malthodes rovnoensis, Kazantsev and Perkovsky 2014 [Cantharidae]
Malthodes serafini, Kuska and Kupryjanowicz 2005 [Cantharidae]
Malthodes sucini, Kuśka and Kania 2010 [Cantharidae]
Malthodes sucinopenninus, Kuśka and Kania 2010 [Cantharidae]
Malthodini, tribe, Boving and Craighead 1931 [Cantharidae]
Maltoniceras [Cardioceratidae]
Malumispongiidae, family, Rigby 1967 [Lyssacinosa]
Malumispongium [Lyssacinosida]
Malumispongium cornwallisi, de Freitas 1991 [Lyssacinosida]
Malungia, Lu 1961 [Dolerolenidae]
Malungia laevigata, Lu 1961 [Dolerolenidae]
Maluridae, family, Swainson 1831 [unclassified family]
Malurostrophia [Douvillinidae]
Malurus, Vieillot 1816 [unclassified genus]
Malurus textilis, Dumont 1824 [unclassified species]
Malutinisuchus, Ochev 1986 [Prolacertidae]
Malutinisuchus gratus, Ochev 1986 [Prolacertidae]
Malutitetrapodiscus, Ellenberger 1970 [Mammalia]
Malutitetrapodiscus minimus, Ellenberger 1970 [Mammalia]
Malutitetrapodiscus pertinax, Ellenberger 1970 [Mammalia]
Malutitetrapodiscus saltator, Ellenberger 1970 [Mammalia]
Malutitetrapodiscus tenuis, Ellenberger 1970 [Mammalia]
Malutitetrasauropodiscus, Ellenberger 1970 [Mammalia]
Malutitetrasauropodiscus minimus, Ellenberger 1970 [Mammalia]
Malutitetrasauropodiscus pertinax, Ellenberger 1970 [Mammalia]
Malutitetrasauropodiscus saltator, Ellenberger 1970 [Mammalia]
Malutitetrasauropodiscus tenuis, Ellenberger 1970 [Mammalia]
Malutitriasauropus, Ellenberger 1970 [unclassified genus]
Malvacarpus, Berry 1925 [Malvaceae]
Malvacarpus octoloculus, Berry 1929 [Malvaceae]
Malvacarpus tertiarius [unclassified species]
Malvaceae, family, A. L. de Jussieu 1789 [Malvales]
Malvaciphyllum, Anzótegui and Cristalli 2000 [Malvaceae]
Malvaciphyllum macondicus, Carvalho et al. 2011 [Malvaceae]
Malvaciphyllum quenquiadensis, Anzótegui and Cristalli 2000 [Malvaceae]
Malvacipollis, Harris 1965 [Magnoliopsida]
Malvacipollis argentina, Zamaloa and Romero 1990 [Magnoliopsida]
Malvacipollis diversus, Harris 1965 [Magnoliopsida]
Malvacipollis subtilis, Stover 1973 [Magnoliopsida]
Malvacipolloides, Anzotegui and Garralla 1985 [unclassified genus]
Malvacipolloides comodoroensis, Barreda 1993 [Malvacipolloides]
Malvales, order, A. L. Jussieu 1820 [Magnoliopsida]
Malvids [Angiospermae]
Malvinella, Wolart 1968 [Calmoniidae]
Malvinocooperella, Lieberman 1993 [Calmoniidae]
Malvufundus, de Gregorio 1885 [Malleidae]
Malwirhynchia, Chiplonker 1938 [Rhynchonellidae]
Malwirhynchia subpentagonalis, Chiplonker 1938 [Rhynchonellidae]
Malwirhynchia transversalis, Chiplonker 1938 [Rhynchonellidae]
Malwirhynchia trigonalis, Chiplonker 1938 [Rhynchonellidae]
Malykania, Suvorova 1958 [Jakutidae]
Malykanotheca [Orthothecida]
Malzella, Hazel 1983 [Hemicytheridae]
Malzella conradi (H. V. Howe et al. 1935) [unclassified species]
Malzella evexa, Hazel 1983 [Hemicytheridae]
Mamatia, Popov and Holmer 1994 [Ephippelasmatidae]
Mamayocaris [Mysidacea]
Mamblarinaus, Herrera 1899 [Soricidae]
Mambrinia, Gardner 1939 [Cassidae]
Mambrinia planotecta (Meyer and Aldrich 1886) [Cassidae]
Mamelohindia, Rigby and Webby 1988 [Hindiidae]
Mamelohindia planata, Rigby and Webby 1988 [Hindiidae]
Mamenchisauridae, family, Chao 1965 [Reptilia]
Mamenchisaurinae, subfamily (Chao 1965) [Reptilia]
Mamenchisauroidea, superfamily, Dong 1998 [Reptilia]
Mamenchisaurus, Young 1954 [Mamenchisauridae]
Mamenchisaurus anyueensis (He et al. 1996) [Mamenchisauridae]
Mamenchisaurus anyuensis, He et al. 1996 [Mamenchisauridae]
Mamenchisaurus changshouensis (Young 1958) [Reptilia]
Mamenchisaurus constructus, Young 1954 [Mamenchisauridae]
Mamenchisaurus fuxiensis (Hou et al. 1976) [Mamenchisauridae]
Mamenchisaurus gongjianensis () [Mamenchisauridae]
Mamenchisaurus hechuanensis (Chao 1965) [Mamenchisauridae]
Mamenchisaurus hochuanensis, Chao 1965 [Mamenchisauridae]
Mamenchisaurus jingyanensis, Zhang et al. 1996 [Mamenchisauridae]
Mamenchisaurus sinocanadorum, Russell and Zheng 1994 [Mamenchisauridae]
Mamenchisaurus youngi, Pi et al. 1996 [Mamenchisauridae]
Mametella, Brenckle 1977 [Aoujgaliaceae]
Mametothyrididae, family, Williams et al. 2006 [Terebratulida]
Mametothyris, Smirnova 1969 [Mametothyrididae]
Mametothyris konovalovi, Smirnova and Konovalov 1986 [Mametothyrididae]
Mametothyris mametica, Smirnova 1969 [unclassified species]
Mamiconus [Neogastropoda]
Mamilla, Fabricius 1823 [Naticidae]
Mamillana, Crosse 1871 [Volutidae]
Mamillodus [Problematica]
Mamillopora [Mamilloporidae]
Mamillopora encrusta, Rigby and Scott 1981 [unclassified species]
Mamilloporidae, family, Canu and Bassler 1927 [Cheilostomata]
Mamilloporoidea, superfamily, Canu and Bassler 1927 [Cheilostomata]
Maminka, Barrande 1881 [Stolidotidae]
Mamma, Blainville 1823 [Naticidae]
Mammacyon, Loomis 1936 [Amphicyonidae]
Mammacyon ferocior, Hunt 2011 [Amphicyonidae]
Mammacyon obtusidens, Loomis 1936 [Amphicyonidae]
Mammalia, class, Linnaeus 1758 [Mammaliaformes]
Mammalia (Linnaeus 1758) [Mammaliaformes]
Mammaliaformes, Rowe 1988 [Mammaliamorpha]
Mammaliamorpha, Rowe 1988 [Probainognathia]
Mammalodon, Pritchard 1939 [Mammalodontidae]
Mammalodon colliveri, Pritchard 1939 [Mammalodontidae]
Mammalodon hakataramea, Fordyce and Marx 2016 [Mammalodontidae]
Mammalodontidae, family, Mitchell 1989 [Cetacea]
Mammia, Handlirsch 1906 [Palaeodictyoptera]
Mammia alutacea, Handlirsch 1906 [Palaeodictyoptera]
Mammilla, Schumacher 1817 [Naticidae]
Mammilla arepa, Landau and Marques da Silva 2010 [Naticidae]
Mammilla brunnea, Link 1807 [Naticidae]
Mammilla caprae (Philippi 1850) [Naticidae]
Mammilla fasciata, Schumacher 1817 [Naticidae]
Mammilla mammata (Röding 1798) [Naticidae]
Mammilla melanostoma (Gmelin 1791) [Naticidae]
Mammillichnis, Chamberlain 1971 [Ichnofossils]
Mammillinae, subfamily, Iredale and McMichael 1962 [Naticidae]
Mammillopora, Bronn 1825 [Stellispongiidae]
Mammillopora encrusta (Rigby and Scott 1981) [Stellispongiidae]
Mammillopora globoconica (Hurcewicz 1975) [Stellispongiidae]
Mammillopora mammillaris (King 1848) [Stellispongiidae]
Mammillopora ramosa (Hinde 1893) [Stellispongiidae]
Mammites, Laube and Bruder 1887 [Acanthoceratidae]
Mammites (Pseudaspidoceras) (Hyatt 1903) [Acanthoceratidae]
Mammites (Pseudaspidoceras) armatus, Pervinquičre 1907 [Acanthoceratidae]
Mammites armatus, Pervinquiére 1907 [Acanthoceratidae]
Mammites bellsanus, Stephenson 1953 [Acanthoceratidae]
Mammites binicostatus, Petrascheck 1902 [Acanthoceratidae]
Mammites chouberti, Collignon 1967 [Acanthoceratidae]
Mammites conciliatum (Stoliczka 1865) [Acanthoceratidae]
Mammites depressus, Powell 1963 [Acanthoceratidae]
Mammites dixeyi, Reyment 1955 [Acanthoceratidae]
Mammites laevis, Karrenberg 1935 [Acanthoceratidae]
Mammites lapparenti, Pervinquičre 1907 [Acanthoceratidae]
Mammites mohavanensis, Böse 1923 [Acanthoceratidae]
Mammites mutabilis, Reyment 1955 [Acanthoceratidae]
Mammites nodosoides (Schlüter 1871) [Acanthoceratidae]
Mammites powelli, Kennedy et al. 1987 [Acanthoceratidae]
Mammites rancheriae, Anderson 1958 [Acanthoceratidae]
Mammites subconciliatum (Choffat 1898) [Acanthoceratidae]
Mammites subconciliatum obliqua, Karrenberg 1935 [Acanthoceratidae]
Mammites tevesthensis, Peron 1896 [Vascoceratidae]
Mammites wingi, Morrow 1935 [Acanthoceratidae]
Mammitidae, family, Hyatt 1900 [Acanthoceratidae]
Mammitinae, subfamily (Hyatt 1900) [Acanthoceratidae]
Mammoides [Palaeocopida]
Mammonachus, Herrera 1899 [Phocidae]
Mammonteus [unclassified genus]
Mammonteus primigenius (Blumenbach 1799) [Elephantidae]
Mammut, Blumenbach 1799 [Mammutidae]
Mammut adamsi (Hibbard 1944) [Mammutidae]
Mammut americanum (R. Kerr 1792) [Mammutidae]
Mammut americanus (R. Kerr 1792) [Mammutidae]
Mammut borsoni (Hays 1834) [unclassified species]
Mammut cosoensis (Schultz 1937) [Mammutidae]
Mammut furlongi, Shotwell and Russell 1963 [Mammutidae]
Mammut matthewi (Osborn 1921) [Mammutidae]
Mammut merriami (Osborn 1921) [Mammutidae]
Mammut nevadanus [Mammutidae]
Mammut ohioticum, Blumenbach 1797 [Mammutidae]
Mammut progenium, Hay 1914 [Mammutidae]
Mammut raki (Frick 1933) [Mammutidae]
Mammuthus, Brookes 1828 [Elephantidae]
Mammuthus (Archidiskodon) (Pohling 1888) [Elephantidae]
Mammuthus (Archidiskodon) imperator (Leidy 1858) [Elephantidae]
Mammuthus (Parelephas) (Osborn 1924) [Elephantidae]
Mammuthus (Parelephas) columbi (Falconer 1857) [Elephantidae]
Mammuthus boreus (O. P. Hay 1924) [Elephantidae]
Mammuthus chosaricus, Dubrovo 1966 [unclassified species]
Mammuthus columbi (Falconer 1857) [Elephantidae]
Mammuthus exilis (Maglio 1970) [Elephantidae]
Mammuthus floridanus (Osborn 1929) [Elephantidae]
Mammuthus haroldcooki (Hay 1928) [Elephantidae]
Mammuthus hayi (Barbour 1915) [Elephantidae]
Mammuthus imperator (Leidy 1858) [Elephantidae]
Mammuthus jacksoni (Mather 1838) [Elephantidae]
Mammuthus jeffersoni (Osborn 1922) [Elephantidae]
Mammuthus jeffersonii (Osborn 1922) [Elephantidae]
Mammuthus lamarmorae (Major 1883) [Elephantidae]
Mammuthus meridionalis (Nesti 1825) [Elephantidae]
Mammuthus primigenius (Blumenbach 1799) [Elephantidae]
Mammuthus trogontherii, Pohlig 1888 [Elephantidae]
Mammutida, Tassy and Shoshani 1997 [Proboscidea]
Mammutidae, family, Hay 1922 [Proboscidea]
Mammutinae, subfamily, Hay 1922 [Mammutidae]
Mammutoidea, suborder [Proboscidea]
Mammutoidea, superfamily () [Proboscidea]
Mamoea, Begg and Grant-Mackie 2003 [Pleurotomariidae]
Mamoea wairakiensis, Begg and Grant-Mackie 2003 [Pleurotomariidae]
Mamoeatomaria, Begg and Grant-Mackie 2006 [Pleurotomariidae]
Mamoeatomaria wairakiensis (Begg and Grant-Mackie 2003) [Pleurotomariidae]
Mamutinetes [Chonetidae]
Manacyathus [Cribricyathea]
Manaia [Glycymerididae]
Manambolites, Hourcq 1949 [Sphenodiscidae]
Manambolites dandensis, Howarth 1965 [Sphenodiscidae]
Manangyasaurus, McCord 1998 [Chamopsiidae]
Manangyasaurus saueri, McCord 1998 [Chamopsiidae]
Manankovia, Astafieva-Urbaytis 1983 [Bivalvia]
Manapsis, Scudder 1894 [Tipulidae]
Manapsis anomala, Scudder 1894 [Tipulidae]
Manaria, Popov and Herczek 1998 [Miridae]
Manaria minor, Popov and Herczek 1998 [Miridae]
Manasoconus, Peel [Helcionellidae]
Manasoconus bifrons, Geyer et al. 2014 [Helcionellidae]
Manatherium, Hartlaub 1886 [Sirenia]
Manatherium delheidi, Hartlaub 1886 [Dugongidae]
Manati, Steller 1774 [Dugongidae]
Manati balaenurus, Boddaert 1785 [Dugongidae]
Manati gigas, Zimmermann 1780 [Dugongidae]
Manatida, family, Brandt 1868 [Sirenia]
Manatidae, family [Sirenia]
Manatides, order, Billberg 1827 [Mammalia]
Manatina, subfamily, Bonaparte 1837 [Mammalia]
Manatina, order (Bonaparte 1837) [Mammalia]
Manatoidea, superfamily, Gill 1872 [Sirenia]
Manatoidea, family (Gill 1872) [Sirenia]
Manatus, Brunnich 1772 [Trichechinae]
Manatus aequatorialis, Lacépčde 1799 [Trichechidae]
Manatus americanus, De Kay 1842 [Trichechinae]
Manatus antiquus (Leidy 1856) [Dugongidae]
Manatus australis, Retzius 1794 [Trichechinae]
Manatus borealis (Gmelin 1788) [Dugongidae]
Manatus brochii (de Blainville 1844) [Dugongidae]
Manatus christolii (Fitzinger 1842) [Dugongidae]
Manatus coulombi, Filhol 1878 [Dugongidae]
Manatus cuvieri (de Christol 1832) [Dugongidae]
Manatus dubius (Cuvier 1824) [Dugongidae]
Manatus fossilis, Holl 1829 [Dugongidae]
Manatus giganteus, DeKay 1842 [Cetacea]
Manatus gigas (Zimmermann 1780) [Dugongidae]
Manatus guettardi, Blainville 1844 [Dugongidae]
Manatus hydropithecus (Shaw 1800) [Mammalia]
Manatus inornatus, Leidy 1873 [Sirenia]
Manatus inunguis, Natterer 1883 [Trichechinae]
Manatus koellikeri, Trouessart 1904 [Trichechinae]
Manatus latirostris, Harlan 1824 [Trichechinae]
Manatus maeoticus, Eichwald 1850 [Phocidae]
Manatus renggeri, Bronn 1838 [Trichechinae]
Manatus schinzii (Kaup 1838) [Dugongidae]
Manatus senegalensis, Desmarest 1817 [Trichechinae]
Manatus studeri, Meyer 1837 [Dugongidae]
Manatus vulgaris, Domning 1996 [Trichechidae]
Manawatawhia, Powell 1937 [Rissoidae]
Manberodus, Hairapetian et al. 2008 [Aztecodontidae]
Manberodus fortis, Hairapetian et al. 2008 [Aztecodontidae]
Mancalla, Lucas 1901 [Alcidae]
Mancalla californiensis, Lucas 1901 [Alcidae]
Mancalla cedrosensis, Howard 1971 [Alcidae]
Mancalla diegense (Miller 1937) [Alcidae]
Mancalla diegensis (Miller 1937) [Alcidae]
Mancalla emlongi, Olson 1981 [Alcidae]
Mancalla lucasi, Smith 2011 [Alcidae]
Mancalla milleri, Howard 1970 [Charadriiformes]
Mancalla vergrandis, Smith 2011 [Alcidae]
Mancallidae, family, Miller 1946 [Alcidae]
Mancallinae, subfamily (Miller 1946) [Alcidae]
Manchuriella, Resser and Endo 1935 [Proasaphiscidae]
Manchuriella macar (Walcott 1911) [Proasaphiscidae]
Manchuriella marginata, Resser and Endo 1937 [Anomocarellidae]
Manchuriella suyangensis, Zhang et al. 1980 [Proasaphiscidae]
Manchuriella tenuilabrosa, Resser and Endo 1937 [Proasaphiscidae]
Manchurocephalus, Endo 1944 [Ptychopariida]
Manchuroceras, Ozaki 1927 [Manchuroceratidae]
Manchuroceras lemonei, Hook and Flower 1977 [Manchuroceratidae]
Manchuroceras nakamense, Stait and Burrett 1984 [unclassified species]
Manchuroceratidae, family, Kobayashi 1935 [Endocerida]
Manchurochelys, Endo and Shikama 1942 [Testudines]
Manchurochelys donhai, Ma 1986 [Testudines]
Manchurochelys liaoxiensis, Ji 1995 [Testudines]
Manchurochelys manchouensis (Endo and Shikama 1942) [unclassified species]
Manchurochelys manchoukuoensis, Endo and Shikama 1942 [Testudines]
Manchurodon, Yabe and Shikama 1938 [Amphidontidae]
Manchurodon simplicidens, Yabe and Shikama 1938 [Amphidontidae]
Manchurosaurus (Riabinin 1930) [Hadrosauridae]
Manchurosaurus amurensis (A. N. Riabinin 1925) [Hadrosauridae]
Manchurosaurus mongoliensis (Gilmore 1933) [Reptilia]
Mancicupes, Lin 1986 [Schizocoleidae]
Mancicupes dilutes, Lin 1986 [Schizocoleidae]
Mancikellia [Cardiida]
Mancinella, Link 1807 [Muricidae]
Mancinella aculeata (Deshayes and Milne-Edwards 1844) [Muricidae]
Mancinella bufo, J. de P. Lamarck 1822 [Muricidae]
Mancorus, Olsson 1931 [Fasciolariidae]
Mancorus grabaui, Olsson 1931 [Fasciolariidae]
Mancorus olssoni, Clark and Durham 1946 [Fasciolariidae]
Mancorus verbeeki (K. Martin 1895) [Fasciolariidae]
Mancosiceras [Cephalopoda]
Mancosinodia, Kadolsky 1988 [Cardiida]
Manculus, Cope 1869 [unclassified genus]
Mancusoblatta, Martins-Neto and Gallego 2005 [Blattaria]
Mancusoblatta pulchella, Martins-Neto and Gallego 2005 [Blattaria]
Mancusoblattidae, family, Martins-Neto and Gallego 2005 [Blattaria]
Mandageria, Johanson and Ahlberg 1997 [Tristichopteridae]
Mandageria fairfaxi, Johanson and Ahlberg 1997 [Tristichopteridae]
Mandagomphodon, Hopson 2013 [Traversodontidae]
Mandagomphodon hirschsoni (Crompton 1972) [Traversodontidae]
Mandalacystis, Lewis et al. 1987 [Rhipidocystidae]
Mandalayia, Stebner et al. 2015 [Psychodidae]
Mandalayia beumersorum, Stebner et al. 2015 [Psychodidae]
Mandaloceras, Hyatt in Zittel 1900 [Mandaloceratidae]
Mandaloceratidae, family, Flower and Teichert 1957 [Discosorida]
Mandalocystis (Lewis et al. 1987) [Rhipidocystidae]
Mandalocystis dockeryi, Lewis et al. 1987 [Rhipidocystidae]
Mandaphon, Tsuji 2018 [unclassified genus]
Mandaphon nadra, Tsuji 2018 [unclassified species]
Mandasuchus, Butler et al. 2018 [Reptilia]
Mandasuchus tanyauchen, Butler et al. 2018 [unclassified species]
Mandawacythere [Podocopida]
Mandchurosaurus (Riabinin 1930) [Hadrosauridae]
Mandchurosaurus mongoliensis (Gilmore 1933) [Reptilia]
Mandelacrinus, Jell and Theron 1999 [Periechocrinidae]
Mandelstamia [Podocopida]
Mandibulata, subphylum [Arthropoda]
Mandjina [Foraminifera]
Mandocythere [Podocopida]
Mandolina, Jousseaume 1884 [Cypraeidae]
Mandolina (Mandolina), Jousseaume 1884 [Cypraeidae]
Mandolina (Mandolina) rhomboidalis (Grateloup 1847) [Cypraeidae]
Mandolina bellardiana (Schilder 1932) [Cypraeidae]
Mandolina gibbosa (Borson 1820) [Cypraeidae]
Mandolina gibbosa pergibba, Sacco 1894 [Cypraeidae]
Mandolina pergibba (Sacco 1894) [Cypraeidae]
Mandolina rhomboidalis (Grateloup 1847) [Cypraeidae]
Mandorovella [Hauerinidae]
Mandril, Voigt 1831 [unclassified genus]
Mandril sphinx (Linnaeus 1758) [Mandrillus]
Mandrillus, Ritgen 1824 [unclassified genus]
Mandrillus leucophaeus (F. Cuvier 1807) [Mandrillus]
Mandrillus sphinx (Linnaeus 1758) [Mandrillus]
Mandschurosaurus, Riabinin 1930 [Hadrosauridae]
Mandschurosaurus amurensis (A. N. Riabinin 1925) [Hadrosauridae]
Mandschurosaurus laosensis, Hoffet 1943 [Hadrosauridae]
Mandschurosaurus mongoliensis, Gilmore 1933 [Reptilia]
Mandulapora, Ding 1984 [Periphaceloporidae]
Manemergus, Buchy et al. 2005 [Polycotylidae]
Manemergus anguirostris, Buchy et al. 2005 [Polycotylidae]
Manespira, Copper 1986 [Protozygidae]
Manespira costata (Cooper 1956) [Protozygidae]
Manespira diversa (Reed 1917) [Protozygidae]
Manespira elongata (Cooper 1956) [Protozygidae]
Manespira magnicostata (Cooper 1956) [Protozygidae]
Manespira nicolleti (Winchell and Schuchert 1892) [Protozygidae]
Manespira rotunda (Cooper 1956) [Protozygidae]
Manevalia, Piton 1940 [Argidae]
Manevalia pachyliformis, Piton 1940 [Argidae]
Manfredaster, Villier et al. 2004 [Stauranderasteridae]
Manfredaster bulbiferus (Forbes 1848) [Stauranderasteridae]
Manfredaster cariniferus, Villier et al. 2004 [Stauranderasteridae]
Manfredaster concinnus (Breton 1978) [Stauranderasteridae]
Manfredaster gibbosus (Spencer 1913) [Stauranderasteridae]
Manfredaster senonensis (Valette 1902) [Stauranderasteridae]
Mangaoparia, Vella 1954 [unclassified genus]
Mangaoparia powelli [unclassified species]
Mangas, Kovalev 1986 [Bolitophilidae]
Mangas exilis, Kovalev 1986 [Bolitophilidae]
Mangasbaatar, Rougier et al. 2016 [unclassified genus]
Mangasbaatar udanii, Rougier et al. 2016 [unclassified species]
Mangasinae, subfamily, Kovalev 1986 [Bolitophilidae]
Mangelia (Loven 1846) [Turridae]
Mangelia (Bela) (Gray 1847) [Turridae]
Mangelia (Bela) paesleri (Strebel 1905) [Turridae]
Mangelia andersoni, Wienrich and Janssen 2007 [Turridae]
Mangelia angulicosta, Scarpioni et al. 2016 [Turridae]
Mangelia balteata, Reeve 1846 [Turridae]
Mangelia barbarensis, Oldroyd 1924 [Turridae]
Mangelia boschi, Oostingh 1935 [Turridae]
Mangelia cornelliana, Martin 1904 [Turridae]
Mangelia costata (Donovan 1803) [Turridae]
Mangelia costellaria (Nyst 1836) [Turridae]
Mangelia cryptopleura, Gardner 1938 [Turridae]
Mangelia cymatias, Pilsbry and Lowe 1932 [Turridae]
Mangelia ecuadoriana, Pilsbry and Olsson 1941 [Turridae]
Mangelia elevata, Gabb 1873 [Turridae]
Mangelia guerichi (Kautsky 1925) [Turridae]
Mangelia hancocki, Hertlein and Strong 1939 [Turridae]
Mangelia heptagona, Gabb 1873 [Turridae]
Mangelia heptapleura, Pilsbry and Olsson 1941 [Turridae]
Mangelia hesperia, Pilsbry and Olsson 1941 [Turridae]
Mangelia interlirata, Stearns 1872 [unclassified species]
Mangelia lanceolata, C. B. Adams 1850 [Turridae]
Mangelia larga, Scarpioni et al. 2016 [Turridae]
Mangelia luellingensis, Wienrich and Janssen 2007 [Turridae]
Mangelia miorugulosa (Kautsky 1925) [Turridae]
Mangelia nebula (Montagu 1803) [Turridae]
Mangelia odovychenae, Scarpioni et al. 2016 [Turridae]
Mangelia pseudorugulosa, Scarpioni et al. 2016 [Turridae]
Mangelia stellata, Stearns 1872 [Turridae]
Mangelia teres (Reeve 1844) [Turridae]
Mangelia variegata, Carpenter 1864 [Turridae]
Mangelia virginiana, Conrad 1862 [Turridae]
Mangeliidae, family (Fischer 1884) [unclassified family]
Mangeliinae, subfamily, Fischer 1884 [Turridae]
Mangeroceras, Sturgeon et al. 1982 [Wiedeyoceratidae]
Mangilia, Loven 1846 [Turridae]
Mangilia (Clathurella) (Carpenter 1857) [Turridae]
Mangilia (Clathurella) martini, Vredenburg 1921 [Turridae]
Mangilia (Glyphostoma) (Gabb 1872) [Conidae]
Mangilia (Glyphostoma) obtusa, Martin 1904 [Conidae]
Mangilia (Pleurotomella) (Verrill 1872) [Turridae]
Mangilia (Pleurotomella) bellistriata, Clark 1895 [Turridae]
Mangilia aguadillana, Dall and Stimpson 1901 [Turridae]
Mangilia ascara, Dall and Simpson 1900 [Turridae]
Mangilia cerina (Kurtz and Stimpson 1851) [Turridae]
Mangilia comatotropis (Dall 1881) [Turridae]
Mangilia consentanea, Guppy 1896 [Turridae]
Mangilia elegantissima, Vredenburg 1921 [Turridae]
Mangilia elongata, Gabb 1873 [Turridae]
Mangilia eritima, Bush 1885 [Turridae]
Mangilia glypta, Bush 1885 [Columbellidae]
Mangilia guerichi, Kautsky 1925 [Turridae]
Mangilia lalonis, Maury 1917 [Turridae]
Mangilia maoica, Maury 1917 [Turridae]
Mangilia melanitica, Dall 1889 [Turridae]
Mangilia micropleura, Guppy 1867 [Turridae]
Mangilia miorugulosa, Kautsky 1925 [Turridae]
Mangilia muricidea, Moody 1916 [unclassified species]
Mangilia nemorensis, Maury 1910 [Turridae]
Mangilia oxia, Bush 1885 [Turridae]
Mangilia parva (Conrad 1830) [Conidae]
Mangilia parvoidea, Martin 1904 [Turridae]
Mangilia patuxentia, Martin 1904 [Turridae]
Mangilia plicosa (Adams 1850) [Turridae]
Mangilia polygona, Gabb 1873 [Turridae]
Mangilia psila, Bush 1885 [Turridae]
Mangilia stellata (Stearns 1872) [Turridae]
Mangilia tarri, Maury 1910 [Turridae]
Mangilia vacavillensis, Bryant and Palmer 1923 [Turridae]
Mangiliella [Neogastropoda]
Mangkeluia [Carinatinidae]
Mangoldiceras, Galácz 2016 [unclassified genus]
Mangoldiceras distefanoi, Galácz 2016 [unclassified species]
Mangonuia, Mestayer 1930 [Architectonicidae]
Mangusta, Olivier 1800 [unclassified genus]
Mangusta auropunctata, Hodgson 1836 [Herpestidae]
Mangusta mungo (Gmelin 1788) [Herpestidae]
Mangyshlakites, Shevyrev 1968 [Columbitidae]
Mangyshlakites mirificus, Shevyrev 1968 [Columbitidae]
Mangystania, Zvonok et al. 2016 [unclassified genus]
Mangystania humilicristata, Zvonok et al. 2016 [unclassified species]
Mania, tribe (Gray 1825) [Manidae]
Manicapsocidae, family [Psocodea]
Manicapsocidus, Baz and Ortuńo 2001 [Electrentomidae]