Aeolidia papilligera Michaelis & Scherk, 1847 accepted as Ziminella salmonacea (Couthouy, 1838) (basis of record)
Alvania gradatula (Mörch, 1876) accepted as Mumiola gradatula (Mörch, 1876) (basis of record)
Amalthea benthophila Dall, 1889 accepted as Hipponix benthophila (Dall, 1889) (basis of record)
Anachis haliaeeti (Jeffreys, 1867) accepted as Amphissa acutecostata (R. A. Philippi, 1844) (basis of record)
Anachis pretrii (Duclos, 1846) accepted as Suturoglypta pretrii (Duclos, 1846) (basis of record)
Anachis rubra (E. von Martens, 1881) accepted as Mitrella rubra (E. von Martens, 1881) (basis of record)
Ancilla glabrata (Linnaeus, 1758) accepted as Eburna glabrata (Linnaeus, 1758) (basis of record)
Ancillaria dimidiata G. B. Sowerby II, 1859 accepted as Amalda dimidiata (G. B. Sowerby II, 1859) (basis of record)
Antarctolima pygmaea (R. A. Philippi, 1845) accepted as Limea pygmaea (R. A. Philippi, 1845) (basis of record)
Aplysia angasi G. B. Sowerby I, 1869 accepted as Aplysia argus Rüppell & Leuckart, 1830 (basis of record)
Aplysia annulifera Thiele, 1930 accepted as Aplysia argus Rüppell & Leuckart, 1830 (basis of record)
Aplysia bourailli Risbec, 1951 accepted as Aplysia argus Rüppell & Leuckart, 1830 (basis of record)
Aplysia fimbriata A. Adams & Reeve, 1850 accepted as Aplysia argus Rüppell & Leuckart, 1830 (basis of record)
Aplysia megaptera A. E. Verrill, 1900 accepted as Aplysia dactylomela Rang, 1828 (basis of record)
Aplysia ocellata A. d'Orbigny, 1839 accepted as Aplysia dactylomela Rang, 1828 (basis of record)
Aplysia odorata Risbec, 1928 accepted as Aplysia argus Rüppell & Leuckart, 1830 (basis of record)
Aplysia operta Burne, 1906 accepted as Aplysia argus Rüppell & Leuckart, 1830 (basis of record)
Aplysia radiata Ehrenberg, 1831 accepted as Aplysia argus Rüppell & Leuckart, 1830 (basis of record)
Aplysia scutellata Ehrenberg, 1831 accepted as Aplysia argus Rüppell & Leuckart, 1830 (basis of record)
Arene venusta (Woodring, 1928) (basis of record)
Atlanta affinis Tesch, 1906 accepted as Atlanta inclinata J. E. Gray, 1850 (basis of record)
Atlanta macrocarinata Bonnevie, 1920 accepted as Atlanta inclinata J. E. Gray, 1850 (basis of record)
Atlanta megalope Richter, 1961 accepted as Atlanta inclinata J. E. Gray, 1850 (basis of record)
Attiliosa striatoides (E. H. Vokes, 1980) accepted as Acanthotrophon striatoides E. H. Vokes, 1980 (basis of record)
Auricula biplicata Deshayes, 1830 accepted as Melampus coffea (Linnaeus, 1758) (basis of record)
Auricula coniformis (Bruguière, 1789) accepted as Melampus coffea (Linnaeus, 1758) (basis of record)
Auricula olivula Küster, 1844 accepted as Melampus coffea (Linnaeus, 1758) (basis of record)
Auriculastra nana F. Haas, 1950 accepted as Microtralia ovulum (L. Pfeiffer, 1840) (basis of record)
Austrotindaria championi (A. H. Clarke, 1961) accepted as Neilonella championi (A. H. Clarke, 1961) (basis of record)
Balcis solitaria (E. A. Smith, 1915) accepted as Melanella solitaria (E. A. Smith, 1915) (basis of record)
Bartschia fusiformis (Clench & Aguayo, 1941) accepted as Manaria fusiformis (Clench & Aguayo, 1941) (basis of record)
Basilissa discula (Dall, 1889) accepted as Fluxinella discula (Dall, 1889) (basis of record)
Bouvieria patagonica (A. d'Orbigny, 1836) accepted as Berthella patagonica (A. d'Orbigny, 1836) (basis of record)
Buccinum glabratum Linnaeus, 1758 accepted as Eburna glabrata (Linnaeus, 1758) (basis of record)
Bulla coffea Linnaeus, 1758 accepted as Melampus coffea (Linnaeus, 1758) (basis of record)
Bulla diaphana A. Gould, 1852 accepted as Haminoea elegans (J. E. Gray, 1825) (source of synonymy)
Bulla guildingii Swainson, 1840 accepted as Haminoea elegans (J. E. Gray, 1825) (basis of record)
Busycotypus plagosus galvestonensis Hollister, 1958 accepted as Fulguropsis plagosa galvestonensis (Hollister, 1958) (status source)
Busycotypus plagosus texanus Hollister, 1958 accepted as Fulguropsis texana (Hollister, 1958) (status source)
Cadulus hatterasensis Pilsbry & Sharp, 1898 accepted as Gadila agassizii (Dall, 1881) (basis of record)
Caecum achirona (de Folin, 1867) (basis of record)
Calliostoma imperialis (Dall, 1881) accepted as Lischkeia imperialis (Dall, 1881) (basis of record)
Calliostoma tiara (R. B. Watson, 1879) accepted as Calliotropis tiara (R. B. Watson, 1879) (basis of record)
Callocardia elegans (Conrad, 1843) accepted as Dosinia concentrica (Born, 1778) (basis of record)
Calyptraea stella Reeve, 1858 accepted as Cheilea equestris (Linnaeus, 1758) (additional source)
Cantharus floridanus (Conrad, 1869) accepted as Calotrophon ostrearum (Conrad, 1846) (basis of record)
Cantharus tinctus (Conrad, 1846) accepted as Gemophos tinctus (Conrad, 1846) (basis of record)
Cassidula corona (Gmelin, 1791) accepted as Melongena corona (Gmelin, 1791) (basis of record)
Cavolina salmonacea (Couthouy, 1838) accepted as Ziminella salmonacea (Couthouy, 1838) (basis of record)
Cerodrillia williami (Bartsch, 1943) accepted as Viridrillia williami Bartsch, 1943 (basis of record)
Chemnitzia producta (C. B. Adams, 1840) accepted as Syrnola producta (C. B. Adams, 1840) (basis of record)
Chiton fastigiatus G. B. Sowerby I, 1833 accepted as Tonicia atrata (G. B. Sowerby II, 1839) accepted as Tonicia chilensis (Frembly, 1827) (basis of record)
Chiton incompletus Fischer von Waldheim, 1807 accepted as Tonicia atrata (G. B. Sowerby II, 1839) accepted as Tonicia chilensis (Frembly, 1827) (basis of record)
Cirsotrema douvillei Fenaux, 1937 accepted as Epitonium magellanicum (R. A. Philippi, 1845) accepted as Cirsotrema magellanicum (R. A. Philippi, 1845) (basis of record)
Cochlis plicata Röding, 1798 accepted as Stigmaulax sulcatus (Born, 1778) (basis of record)
Columbella raveneli (Dall, 1889) accepted as Astyris raveneli Dall, 1889 (basis of record)
Coryphella laevidens Knipowitsch, 1902 accepted as Ziminella salmonacea (Couthouy, 1838) (basis of record)
Coryphella stimpsoni (A. E. Verrill, 1879) accepted as Ziminella salmonacea (Couthouy, 1838) (basis of record)
Crassispira albomaculata (A. d'Orbigny, 1847) accepted as Pilsbryspira nodata (C. B. Adams, 1850) (basis of record)
Crassispira leucocyma (Dall, 1884) accepted as Pilsbryspira leucocyma (Dall, 1884) (basis of record)
Crassispira solida (C. B. Adams, 1850) accepted as Clathrodrillia solida (C. B. Adams, 1850) (basis of record)
Cryoturris elata (Dall, 1889) accepted as Platycythara elata (Dall, 1889) (basis of record)
Cryoturris serga (Dall, 1881) accepted as Kurtziella serga (Dall, 1881) (basis of record)
Cyrbasia pulchella (Jeffreys, 1858) accepted as Cerithiopsis jeffreysi R. B. Watson, 1885 (basis of record)
Cystiscus truncatus (Dall, 1927) (basis of record)
Daphnella michaelseni Strebel, 1905 accepted as Thesbia michaelseni (Strebel, 1905) (basis of record)
Dentalium (Dentalium) texasianum rioense J. B. Henderson, 1920 represented as Dentalium texasianum rioense J. B. Henderson, 1920 accepted as Paradentalium americanum (Chenu, 1843) (basis of record)
Dentalium stimpsoni J. B. Henderson, 1920 accepted as Antalis entalis (Linnaeus, 1758) (basis of record)
Dentimargo elatus (R. B. Watson, 1886) accepted as Dentimargo elata (R. B. Watson, 1886) (basis of record)
Drillia gibbosa var. minor Dautzenberg, 1900 accepted as Clathrodrillia dautzenbergi (Tippett, 1995) (basis of record)
Eatoniella rubrooperculata Castellanos & D. E. Fernández, 1972 accepted as Barleeia rubrooperculata (Castellanos & D. E. Fernández, 1972) (basis of record)
Echininus antonii (R. A. Philippi, 1846) accepted as Tectarius antonii (R. A. Philippi, 1846) (basis of record)
Echininus major Nowell-Usticke, 1969 accepted as Tectarius antonii (R. A. Philippi, 1846) (basis of record)
Egouena carneum (Storer, 1837) accepted as Prunum carneum (Storer, 1837) (basis of record)
Ellobium barbadense Röding, 1798 accepted as Melampus coffea (Linnaeus, 1758) (basis of record)
Eratoidea fernandinae (Dall, 1927) (additional source)
Eratoidea margarita (Kiener, 1834) (additional source)
Eratoidea scalaris (Jousseaume, 1875) (additional source)
Eulimastoma engonium surinamense van Regteren Altena, 1975 represented as Eulimastoma surinamense van Regteren Altena, 1975 (basis of record)
Fimbriatella barbadensis (Dall, 1889) accepted as Mathilda barbadensis Dall, 1889 (basis of record)
Fissurella (Cremides) alternata Say, 1822 accepted as Diodora cayenensis (Lamarck, 1822) (basis of record)
Fissurella (Cremides) alternata var. sayi Dall, 1889 accepted as Diodora sayi (Dall, 1889) (basis of record)
Fissurella (Glyphis) P. P. Carpenter, 1857 accepted as Diodora J. E. Gray, 1821 (basis of record)
Fissurella (Glyphis) fluviana Dall, 1889 accepted as Diodora fluviana (Dall, 1889) (basis of record)
Fissurella alternata Say, 1822 accepted as Diodora cayenensis (Lamarck, 1822) (basis of record)
Fissurella cayenensis Lamarck, 1822 accepted as Diodora cayenensis (Lamarck, 1822) (basis of record)
Fissurella fluviana Dall, 1889 accepted as Diodora fluviana (Dall, 1889) (basis of record)
Fissurella fumata Reeve, 1850 accepted as Diodora cayenensis (Lamarck, 1822) (basis of record)
Fissurella henseli E. von Martens, 1900 accepted as Lucapinella henseli (E. von Martens, 1900) (basis of record)
Fissurella larva Reeve, 1850 accepted as Diodora cayenensis (Lamarck, 1822) (basis of record)
Fissurella sayi Dall, 1889 accepted as Diodora sayi (Dall, 1889) (basis of record)
Fissurella viminea Reeve, 1850 accepted as Diodora cayenensis (Lamarck, 1822) (basis of record)
Fissuridea sayi (Dall, 1889) accepted as Diodora sayi (Dall, 1889) (basis of record)
Fissurisepta triangulata (Dall, 1889) accepted as Cornisepta acuminata (R. B. Watson, 1883) (additional source)
Fossarilittorina meleagris (Potiez & Michaud, 1838) accepted as Echinolittorina meleagris (Potiez & Michaud, 1838) (basis of record)
Fusus bicolor Say, 1826 accepted as Melongena bicolor (Say, 1826) accepted as Melongena corona (Gmelin, 1791) (basis of record)
Fusus brasiliensis Grabau, 1904 accepted as Goniofusus brasiliensis (Grabau, 1904) (basis of record)
Fusus cingulifera (Lamarck, 1816) accepted as Leucozonia nassa (Gmelin, 1791) (basis of record)
Fusus turricula (Montagu, 1803) accepted as Propebela turricula (Montagu, 1803) (basis of record)
Gaza watsoni (Dall, 1881) accepted as Callogaza watsoni Dall, 1881 (basis of record)