• [unassigned] Mitromorphidae linigera (Duclos, 1846) (uncertain > taxon inquirendum)
• Abaconia naufraga (Clench, 1938) accepted as Litiopa melanostoma Rang, 1829
• Abbottella (Abbottella) abbotti Bartsch, 1946 accepted as Abbottipoma abbotti (Bartsch, 1946)
• Abbottella (Abbottella) adolfi (L. Pfeiffer, 1852) accepted as Arenabbottella adolfi (L. Pfeiffer, 1852)
• Abbottella (Abbottella) adolfi adolfi (L. Pfeiffer, 1852) accepted as Arenabbottella adolfi (L. Pfeiffer, 1852)
• Abbottella (Abbottella) adolfi peninsularis Bartsch, 1946 represented as Abbottella adolfi peninsularis Bartsch, 1946 accepted as Arenabbottella sanchezi (Bartsch, 1946)
• Abbottella (Abbottella) aenea Watters, 2010 accepted as Arenabbottella aenea (Watters, 2010)
• Abbottella (Abbottella) calliotropis Watters, 2013 accepted as Arenabbottella calliotropis (Watters, 2013)
• Abbottella (Abbottella) crossei (Pilsbry, 1933) accepted as Abbottipoma crossei (Pilsbry, 1933)
• Abbottella (Abbottella) diadema Watters, 2013 accepted as Microabbottella diadema (Watters, 2013)
• Abbottella (Abbottella) dichroa Watters, 2013 accepted as Arenabbottella dichroa (Watters, 2013)
• Abbottella (Abbottella) harpeza Watters & Duffy, 2010 accepted as Abbottipoma crossei (Pilsbry, 1933)
• Abbottella (Abbottella) mellosa Watters & Duffy, 2010 accepted as Arenabbottella mellosa (Watters & Duffy, 2010)
• Abbottella (Abbottella) milleacantha Watters & Duffy, 2010 accepted as Arenabbottella milleacantha (Watters & Duffy, 2010)
• Abbottella (Abbottella) nitens Watters, 2013 accepted as Arenabbottella nitens (Watters, 2013)
• Abbottella (Abbottella) rosaliae (L. Pfeiffer, 1858) accepted as Arenabbottella rosaliae (L. Pfeiffer, 1858)
• Abbottella (Abbottella) samanensis Bartsch, 1946 accepted as Arenabbottella samanensis (Bartsch, 1946)
• Abbottella (Abbottella) sanchezi Bartsch, 1946 accepted as Arenabbottella sanchezi (Bartsch, 1946)
• Abbottella (Abbottella) sosuaensis Bartsch, 1946 accepted as Arenabbottella sosuaensis (Bartsch, 1946)
• Abbottella (Abbottella) tenebrosa Watters, 2013 accepted as Arenabbottella tenebrosa (Watters, 2013)
• Abbottella (Abbottella) urbana Watters, 2012 accepted as Arenabbottella urbana (Watters, 2012)
• Abbottella (Abbottella) wilhelmi (L. Pfeiffer, 1858) accepted as Arenabbottella wilhelmi (L. Pfeiffer, 1858)
• Abbottella (Gundlachtudora) bompardopolensis Bartsch, 1946 accepted as Rolleia bombardopolensis (Bartsch, 1946)
• Abbottella (Gundlachtudora) paradoxa Watters, 2013 accepted as Rolleia paradoxa (Watters, 2013)
• Abbottella abbotti Bartsch, 1946 accepted as Abbottipoma abbotti (Bartsch, 1946)
• Abbottella adolfi (L. Pfeiffer, 1852) accepted as Arenabbottella adolfi (L. Pfeiffer, 1852)
• Abbottella adolfi adolfi (L. Pfeiffer, 1852) accepted as Arenabbottella adolfi (L. Pfeiffer, 1852)
• Abbottella adolfi peninsularis Bartsch, 1946 accepted as Arenabbottella sanchezi (Bartsch, 1946)
• Abbottella adolphi [sic] accepted as Arenabbottella adolfi (L. Pfeiffer, 1852)
• Abbottella adolphi peninsularis Bartsch, 1946 accepted as Arenabbottella sanchezi (Bartsch, 1946)
• Abbottella aenea Watters, 2010 accepted as Arenabbottella aenea (Watters, 2010)
• Abbottella bompardopolensis Bartsch, 1946
• Abbottella calliotropis Watters, 2013 accepted as Arenabbottella calliotropis (Watters, 2013)
• Abbottella crataegus Watters, 2016
• Abbottella crossei (Pilsbry, 1933) accepted as Abbottipoma crossei (Pilsbry, 1933)
• Abbottella diadema Watters, 2013 accepted as Microabbottella diadema (Watters, 2013)
• Abbottella dichroa Watters, 2013 accepted as Arenabbottella dichroa (Watters, 2013)
• Abbottella domingoensis Bartsch, 1946
• Abbottella gabbi (Crosse, 1873) accepted as Abbottipoma gabbi (Crosse, 1873)
• Abbottella gabbi gabbi (Crosse, 1873) accepted as Abbottipoma gabbi (Crosse, 1873)
• Abbottella gabbi pilsbryi Bartsch, 1946 accepted as Abbottipoma crossei (Pilsbry, 1933)
• Abbottella haitensis Bartsch, 1946
• Abbottella harpeza Watters & Duffy, 2010 accepted as Abbottipoma crossei (Pilsbry, 1933)
• Abbottella mellosa Watters & Duffy, 2010 accepted as Arenabbottella mellosa (Watters & Duffy, 2010)
• Abbottella milleacantha Watters & Duffy, 2010 accepted as Arenabbottella milleacantha (Watters & Duffy, 2010)
• Abbottella moreletiana (Crosse, 1873)
• Abbottella moreletiana domingoensis Bartsch, 1946 accepted as Abbottella domingoensis Bartsch, 1946
• Abbottella moreletiana gabrieli Bartsch, 1946 accepted as Abbottella domingoensis Bartsch, 1946
• Abbottella moreletiana kriegeri Bartsch, 1946
• Abbottella moreletiana moreletiana (Crosse, 1873)
• Abbottella moreletiana wetmorei Bartsch, 1946 accepted as Abbottella domingoensis Bartsch, 1946
• Abbottella nitens Watters, 2013 accepted as Arenabbottella nitens (Watters, 2013)
• Abbottella paradoxa Watters, 2013 accepted as Rolleia paradoxa (Watters, 2013)
• Abbottella rosaliae (L. Pfeiffer, 1858) accepted as Arenabbottella rosaliae (L. Pfeiffer, 1858)
• Abbottella samanensis Bartsch, 1946 accepted as Arenabbottella samanensis (Bartsch, 1946)
• Abbottella sanchezi Bartsch, 1946 accepted as Arenabbottella sanchezi (Bartsch, 1946)
• Abbottella sosuaensis Bartsch, 1946 accepted as Arenabbottella sosuaensis (Bartsch, 1946)
• Abbottella tenebrosa Watters, 2013 accepted as Arenabbottella tenebrosa (Watters, 2013)
• Abbottella tentorium (L. Pfeiffer, 1850) accepted as Arenabbottella tentorium (L. Pfeiffer, 1850)
• Abbottella urbana Watters, 2012 accepted as Arenabbottella urbana (Watters, 2012)
• Abbottella wilhelmi (L. Pfeiffer, 1858) accepted as Arenabbottella wilhelmi (L. Pfeiffer, 1858)
• Abbottipoma abbotti (Bartsch, 1946)
• Abbottipoma crossei (Pilsbry, 1933)
• Abbottipoma gabbi (Crosse, 1873)
• Abeskunus brusinianus (Clessin & W. Dybowski, 1887)
• Abeskunus depressispira (Logvinenko & Starobogatov, 1969)
• Abeskunus exiguus (Eichwald, 1838)
• Abretia antarctica E. A. Smith, 1873 accepted as Terebra tristis Deshayes, 1859 accepted as Duplicaria tristis (Deshayes, 1859)
• Abretia brasiliensis E. A. Smith, 1873 accepted as Neoterebra brasiliensis (E. A. Smith, 1873)
• Abyssoaclis alagoensis J. Barros, Mello, F. Barros, S. Lima, Santos, Cabral & Padovan, 2003
• Abyssobela atoxica Kantor & Sysoev, 1986
• Abyssochrysos bicinctum Bouchet, 1991 accepted as Abyssochrysos bicinctus Bouchet, 1991
• Abyssochrysos bicinctus Bouchet, 1991
• Abyssochrysos bituminifer (C. W. Cooke, 1919) †
• Abyssochrysos brasilianum Bouchet, 1991 accepted as Abyssochrysos brasilianus Bouchet, 1991
• Abyssochrysos brasilianus Bouchet, 1991
• Abyssochrysos costatus (C. W. Cooke, 1919) †
• Abyssochrysos eburneum (Locard, 1897) accepted as Abyssochrysos eburneus (Locard, 1897)
• Abyssochrysos eburneus (Locard, 1897)
• Abyssochrysos giganteum Kiel, K. A. Campbell, Elder & C. Little, 2008 † accepted as Ascheria gigantea (Kiel, K. A. Campbell, Elder & C. Little, 2008) †
• Abyssochrysos melanioides Tomlin, 1927
• Abyssochrysos melvilli (Schepman, 1909)
• Abyssochrysos tomlini Barnard, 1963 accepted as Abyssochrysos melvilli (Schepman, 1909)
• Abyssochrysos xouthos Killeen & P. G. Oliver, 2000
• Abyssocomitas kurilokamchatica Sysoev & Kantor, 1986
• Abyssomelania cramptoni Kaim, R. G. Jenkins, Tanabe & Kiel, 2014 †
• Abyssothauma psilarosis (Barnard, 1963)
• Abyssotrophon christae Egorov, 1993
• Abyssotrophon convexus Egorov, 1994 accepted as Abyssotrophon delicatus (Kuroda, 1953)
• Abyssotrophon crystallinus (Kuroda, 1953)
• Abyssotrophon delicatus (Kuroda, 1953)
• Abyssotrophon drygalskii (Thiele, 1912) accepted as Trophon drygalskii Thiele, 1912
• Abyssotrophon edzoevi Egorov, 1994
• Abyssotrophon fusiformis Houart, Vermeij & Wiedrick, 2019
• Abyssotrophon hadalis (Sysoev, 1992)
• Abyssotrophon hubbsi (Rokop, 1972)
• Abyssotrophon ivanovi Egorov, 1993
• Abyssotrophon longisiphon Egorov, 1993 accepted as Abyssotrophon soyoae (Okutani, 1959)
• Abyssotrophon lorenzoensis (Durham, 1942)
• Abyssotrophon minimus (Okutani, 1964)