SELECT p.first_name AS contributor_first,p.last_name AS contributor_last,p2.first_name AS enterer_first,p2.last_name AS enterer_last,t.* FROM people p,people p2,samples t,register t2 WHERE t.contributor_no=p.person_no AND t.enterer_no=p2.person_no AND t.sample_no=t2.sample_no AND genus='Eunectes' GROUP BY t.sample_no SELECT life_form FROM register WHERE genus='Eunectes' LIMIT 1 SELECT corrected_richness AS estimate FROM samples WHERE sample_no=391 SELECT corrected_richness AS estimate FROM samples WHERE sample_no=497 SELECT genus FROM register WHERE register_no IN (75986,9042,70297,25438,23152,94792,46413,14641,28299,96074) AND species REGEXP '^[a-z]*$'
