• Achasmea rugata Kuroda & Habe, 1971 accepted as Scintilla striatina Deshayes, 1856
• Achasmea thaanumi (Pilsbry, 1921)
• Achasmea thalassemicola Habe, 1962 (taxon inquirendum)
• Aclistothyra atlantica McGinty, 1955
• Aclistothyra orientalis Lützen & C. Nielsen, 2005 accepted as Ephippodontomorpha orientalis (Lützen & C. Nielsen, 2005)
• Aenictomya mirabilis (Lynge, 1909)
• Aenictomya quadrangularis (Lynge, 1909)
• Aligena (Odontogena) borealis Cowan, 1964 accepted as Odontogena borealis (Cowan, 1964)
• Aligena borniana Dall, 1908 accepted as Axinodon bornianus (Dall, 1908)
• Aligena cerritensis Arnold, 1903 † accepted as Isorobitella trigonalis (Carpenter, 1857)
• Aligena cokeri Dall, 1909 accepted as Kelliopsis cokeri (Dall, 1909)
• Aligena elevata (Stimpson, 1851) accepted as Kelliopsis elevata (Stimpson, 1851)
• Aligena laterodentata Harry, Britton & Nunley, 1980 accepted as Kelliopsis laterodentata (Harry, Britton & Nunley, 1980)
• Aligena muris (Rosewater, 1984)
• Aligena nucea Dall, 1913 accepted as Kelliopsis nucea (Dall, 1913)
• Aligena obliqua Harry, 1969 accepted as Kelliopsis obliqua (Harry, 1969)
• Aligena ovalis (E. A. Smith, 1904)
• Aligena peruviana (Olsson, 1961) accepted as Isorobitella peruviana (Olsson, 1961)
• Aligena pisum Dall, 1908 accepted as Adontorhina pisum (Dall, 1908)
• Aligena redondoensis T. A. Burch, 1941 accepted as Axinodon redondoensis (T. A. Burch, 1941)
• Aligena sechura (Olsson, 1961)
• Aligena texasiana Harry, 1969 accepted as Kelliopsis texasiana (Harry, 1969)
• Aligena trigonalis (Carpenter, 1857) accepted as Isorobitella trigonalis (Carpenter, 1857)
• Altenaeum charcoti (Lamy, 1906)
• Altenaeum dawsoni (Jeffreys, 1864)
• Altenaeum gibbosum (Thiele, 1912)
• Altenaeum mabillei (Dall, 1908)
• Altenaeum narchii (Passos & Domaneschi, 2006)
• Altenaeum nortoni Spaink, 1972 accepted as Altenaeum dawsoni (Jeffreys, 1864)
• Ambuscintilla daviei (B. Morton, 2008)
• Ambuscintilla praemium Iredale, 1936
• Amerycina colpoica (Dall, 1913)
• Amerycina cultrata Keen, 1971
• Amerycina emmonsi (Dall, 1899)
• Amerycina huberi Valentich-Scott, 2012
• Amerycina linella (Dall, 1899)
• Amerycina mikkelsenae Valentich-Scott, 2012 accepted as Litigiella mikkelsenae (Valentich-Scott, 2012)
• Amerycina periscopiana (Dall, 1899)
• Amphilepida aurantia (Deshayes, 1835)
• Amphilepida callipareia (Melvill, 1899)
• Amphilepida elongata (G. B. Sowerby III, 1897)
• Amphilepida faba (Deshayes, 1856) accepted as Lepirodes ambiguus (Deshayes, 1856)
• Amphilepida peilei (Tomlin, 1921) accepted as Lepirodes ambiguus (Deshayes, 1856)
• Amphilepida polita (Deshayes, 1856) accepted as Lepirodes politus (Deshayes, 1856)
• Anapa smithii Gray, 1853 accepted as Anapella cycladea (Lamarck, 1818)
• Anapa tasmanica Tenison Woods, 1876 accepted as Atactodea cuneata (Lamarck, 1818)
• Anisodevonia major (Bruun, 1938)
• Anisodevonia ohshimai (Kawahara, 1942)
• Anisodonta (Austrosportella) pseudoscintilla Ponder, 1971 represented as Anisodonta pseudoscintilla Ponder, 1971
• Anisodonta (Tahunanuia) alata (Powell, 1952) represented as Anisodonta alata (Powell, 1952)
• Anisodonta (Tahunanuia) alata alata (Powell, 1952) represented as Anisodonta alata alata (Powell, 1952) represented as Anisodonta alata (Powell, 1952)
• Anisodonta (Tahunanuia) alata trigonia (Powell, 1952) represented as Anisodonta alata trigonia (Powell, 1952)
• Anisodonta alata (Powell, 1952)
• Anisodonta alata alata (Powell, 1952) represented as Anisodonta alata (Powell, 1952)
• Anisodonta alata trigonia (Powell, 1952)
• Anisodonta angulata (H. Adams, 1871) accepted as Basterotia angulata (H. Adams, 1871)
• Anisodonta angulata Dall, Bartsch & Rehder, 1938 accepted as Basterotia angulata (H. Adams, 1871)
• Anisodonta borbonica Deshayes, 1863 accepted as Basterotia borbonica (Deshayes in Maillard, 1863)
• Anisodonta carolina Dall, 1900
• Anisodonta complanatum Deshayes, 1857 †
• Anisodonta corbuloidea Dall, 1899 accepted as Basterotia corbuloidea (Dall, 1899)
• Anisodonta lutea Dall, Bartsch & Rehder, 1938 accepted as Basterotia lutea (Dall, Bartsch & Rehder, 1938)
• Anisodonta maillardi Deshayes, 1863 accepted as Basterotia maillardi (Deshayes in Maillard, 1863)
• Anisodonta pellucida Dall, 1916 accepted as Simomactra falcata (Gould, 1850)
• Anisodonta peninsularis Jordan, 1936 accepted as Basterotia peninsularis (Jordan, 1936)
• Anisodonta pseudoscintilla Ponder, 1971
• Anisodonta stimpsoni (A. Adams, 1864) accepted as Basterotia stimpsoni (A. Adams, 1864)
• Arculus sykesii (Chaster, 1895)
• Arthritica ambotruncata Laws, 1944 †
• Arthritica bifurca (Webster, 1908)
• Arthritica crassiformis Powell, 1933
• Arthritica crassitesta Laws, 1950 †
• Arthritica dispar Laws, 1940 †
• Arthritica elongata Laws, 1936 †
• Arthritica finlayi Laws, 1950 †
• Arthritica helmsi (Hedley, 1915) accepted as Arthritica semen (Menke, 1843)
• Arthritica hulmei Ponder, 1965
• Arthritica japonica Lützen & Takahashi, 2003
• Arthritica perfragilis Laws, 1950 †
• Arthritica reikoae (T. Suzuki & Kosuge, 2010)
• Arthritica semen (Menke, 1843)
• Arthritica whitechurchi (W. H. Turton, 1932)
• Atopomya dolobrata P. G. Oliver, 2013
• Austrodevonia percompressa (Dall, 1899)
• Austrodevonia sharnae Middelfart & Craig, 2004
• Axinodon bornianus (Dall, 1908)
• Axinodon ellipticus Verrill & Bush, 1898
• Axinodon luzonicus (E. A. Smith, 1885)
• Axinodon moseleyi (E. A. Smith, 1885)
• Axinodon redondoensis (T. A. Burch, 1941)
• Axinodon symmetros (Jeffreys, 1876) accepted as Kelliola symmetros (Jeffreys, 1876)
• Barclayia incerta (Deshayes, 1863)
• Barrimysia (Callomysia) ornata (Barnard, 1964) represented as Callomysia ornata (Barnard, 1964)
• Barrimysia cumingii (A. Adams, 1856)
• Barrimysia excellens (Hedley, 1912) accepted as Barrimysia cumingii (A. Adams, 1856)
• Barrimysia ornata (Barnard, 1964) accepted as Callomysia ornata (Barnard, 1964)
• Barrimysia sagamiensis Kuroda & Habe, 1971 accepted as Callomysia sagamiensis (Kuroda & Habe, 1971)
• Barrimysia siphonasomae B. Morton & Scott, 1989
• Basterotia angulata (H. Adams, 1871)
• Basterotia angulata (S. V. Wood, 1857) accepted as Basterotina angulata (S. V. Wood, 1857)