Aaptolasma americana (Pilsbry, 1916) (basis of record)
Aaptolasma brintoni Newman & Ross, 1971 (basis of record)
Aaptolasma callistoderma (Pilsbry, 1911) (basis of record)
Aaptolasma leptoderma Newman & Ross, 1971 (basis of record)
Aaptolasma triderma Newman & Ross, 1971 (basis of record)
Aaptos aaptos (Schmidt, 1864) (basis of record)
Aaroniella achrysa (Banks, 1941) (basis of record)
Aaroniella badonneli (Danks, 1950) (basis of record)
Aaroniella maculosa (Aaron, 1883) (basis of record)
Aatolana rapax Bruce, 1993 (basis of record)
Aatolana schioedtei (Miers, 1884) (basis of record)
Abacaria barretti Korboot, 1964 (basis of record)
Abacaria fijiana (Mosely, 1934) (basis of record)
Abacaria orkeni Illies, 1969 (basis of record)
Abacaria picea (Brauer, 1867) (basis of record)
Abacaria ruficeps (Brauer, 1867) (basis of record)
Abacaria subfusca Kimmins, 1962 (basis of record)
Abachrysa eureka (Banks, 1931) (basis of record)
Abacidus atratus Newman (basis of record)
Abacidus fallax Dejean (basis of record)
Abacidus hamiltoni Horn (basis of record)
Abacidus obesulus Leconte, 1873 (basis of record)
Abacidus permundus Say, 1834 (basis of record)
Abacidus sculptus Leconte, 1852 (basis of record)
Abacion lactarium (Say, 1821) (basis of record)
Abacion magnum (Loomis, 1943) (basis of record)
Abacion tesselatum Rafinesque, 1820 (basis of record)
Abacion texensis (Loomis, 1937) (basis of record)
Abacoceraphron ocellaris Dessart, 1975 (basis of record)
Abacola holothuriae Edwards, 1891 accepted as Metis holothuriae (Edwards, 1891) (basis of record)
Abama americana (Ker-Gawl.) Morong accepted as Narthecium americanum Ker-Gawl. (basis of record)
Abama montana Small accepted as Narthecium americanum Ker-Gawl. (basis of record)
Abarenicola claparedi (Levinsen, 1884) (basis of record)
Abarenicola oceanica (basis of record)
Abarenicola pacifica Healy & Wells, 1959 (basis of record)
Abarenicola pusilla (Quatrefages, 1866) (basis of record)
Abarenicola vagabunda Healy & Wells, 1959 (basis of record)
Abaria achwatirtha Schmid, 1982 (basis of record)
Abaria ateduna Malicky & Chantaramongkol, 1992 (basis of record)
Abaria boripat Malicky & Chantaramongkol, 1993 (basis of record)
Abaria devavrata Schmid, 1982 (basis of record)
Abaria dusyanta Schmid, 1982 (basis of record)
Abaria electa Marlier, 1960 (basis of record)
Abaria helinatha Mey, 1998 (basis of record)
Abaria madhavi Schmid, 1982 (basis of record)
Abaria margaritifera Schmid, 1958 (basis of record)
Abaria mindorocola Mey, 1995 (basis of record)
Abaria mindorogena Mey, 1995 (basis of record)
Abaria puma Malicky & Chantaramongkol, 1992 (basis of record)
Abaria puru Schmid, 1982 (basis of record)
Abaria quatila Malicky & Chantaramongkol, 1992 (basis of record)
Abaria richika Schmid, 1982 (basis of record)
Abaria tripunctata Mosely, 1948 (basis of record)
Abaria triquetra Mey, 1998 (basis of record)
Abaria uchinara Schmid, 1982 (basis of record)
Abaria yakcha Schmid, 1982 (basis of record)
Abasia pseudorostris C.B. Wilson, 1908 (basis of record)
Abathescalpellum koreanum (Hiro, 1933) (basis of record)
Abatoleon dorsalis (Banks, 1903) (basis of record)
Abatoleon indiges (Walker, 1860) (basis of record)
Abax alabamae Vandyke (basis of record)
Abax alabamensis Casey (basis of record)
Abax alternans Casey (basis of record)
Abax approximatus Leconte, 1948 (basis of record)
Abax blatchleyi Casey (basis of record)
Abax brevoorti Leconte, 1848 (basis of record)
Abax constrictus Say, 1823 (basis of record)
Abax convivus Leconte, 1852 (basis of record)
Abax engelmanni Leconte, 1852 (basis of record)
Abax faber Fermar (basis of record)
Abax floridensis Say, 1823 (basis of record)
Abax fucatus Freitag (basis of record)
Abax furtivus Leconte, 1852 (basis of record)
Abax gravesi Freitag (basis of record)
Abax gravidus Haldeman (basis of record)
Abax hermandensis Vandyke (basis of record)
Abax heros Say, 1823 (basis of record)
Abax hypherpiformis Freitag (basis of record)
Abax incisus Leconte, 1848 (basis of record)
Abax iowensis Freitag (basis of record)
Abax iuvenis Freitag (basis of record)
Abax laevipennis Leconte, 1848 (basis of record)
Abax levifaber Freitag (basis of record)
Abax macrovulum Freitag (basis of record)
Abax morio Dejean (basis of record)
Abax nonnitens Leconte, 1873 (basis of record)
Abax obsoletus Say, 1823 (basis of record)
Abax ovulum Chaudoir (basis of record)
Abax parafaber Freitag (basis of record)
Abax parasodalis Freitag (basis of record)
Abax sallei Casey (basis of record)
Abax seximpressus Leconte, 1842 (basis of record)
Abax sigillatus Say, 1923 (basis of record)
Abax sinus Freitag (basis of record)
Abax sodalis Leconte, 1848 (basis of record)
Abax spoliatus Newman (basis of record)
Abax substriatus Leconte, 1848 (basis of record)
Abax texensis Freitag (basis of record)
Abax torvus Leconte, 1863 (basis of record)
Abax unicolor Say, 1823 (basis of record)