| Full Current Name |
| 'Cocculina' superba Clarke, 1960 |
| Iothia coppingeri (E. A. Smith, 1881) |
| Nacella magellanica (Gmelin, 1791) |
| Nacella mytilina (Helbling, 1779) |
| Nacella deaurata (Gmelin, 1791) |
| Anatoma conica (d'Orbigny, 1841) |
| Thieleella argentinae Zelaya & Geiger, 2007 |
| Anatoma euglypta (Pelseneer, 1903) |
| Ariella subantarctica (Hedley, 1916) |
| Scissurella clathrata Strebel, 1908 |
| Scissurella dalli Bartsch, 1903 [Dubious name] |
| Scissurella petermannensis Lamy, 1910 |
| Parmaphoridea melvilli (Thiele, 1912) |
| Diodora patagonica (d'Orbigny, 1839) |
| Fissurellidea megatrema d'Orbigny, 1839 |
| Fissurella radiosa tixierae Métivier, 1969 |
| Fissurellidea patagonica (Strebel, 1907) |
| Fissurella radiosa radiosa Lesson, 1831 |
| Puncturella conica (d'Orbigny, 1841) |
| Lucapinella henseli (Martens, 1900) |
| Calliostoma militare Ihering, 1907 |
| Photinula viaginalis Rochebrune & Mabille, 1885 [Dubious name] |
| Calliostoma irisans Strebel, 1905 |
| Falsimargarita iris (E. A. Smith, 1915) |
| Calliostoma anderssoni Strebel, 1908 |
| Photinula coerulescens (King & Broderip, 1832) |
| Photinula lahillei Ihering, 1902 |
| Calliostoma carcellesi Clench & Aguayo, 1940 |
| Calliostoma nordenskjoldi Strebel, 1908 |
| Calliostoma moebiusi Strebel, 1905 |
| Calliostoma magaldii Caldini & Prado, 1998 |
| Photinula blakei (Clench & Aguayo, 1938) |
| Photinostoma taeniatum (Sowerby I, 1825) |
| Calliostoma nudiusculum (Martens, 1881) |
| Calliostoma jucundum (Gould, 1849) |
| Calliostoma modestulum Strebel, 1908 |
| Calliostoma nudum (Philippi, 1845) |
| Calliostoma consimile (E. A. Smith, 1881) |
| Calliostoma coppingeri (E. A. Smith, 1880) |
| Falsimargarita stephaniae Rios & Simone, 2005 |
| Halistylus columna (Dall, 1890) |
| Margarella expansa (Sowerby I, 1838) |
| Margarella violacea (King & Broderip, 1832) |
| Margarella pruinosa (Rochebrune & Mabille, 1885) |
| Solariella kempi A. W. B. Powell, 1951 |
| Solariella patriae Carcelles, 1953 |
| Munditia gaudens (Melvill & Standen, 1912) |
| Lodderia coatsiana (Melvill & Standen, 1912) |
| Tegula atra (Lesson, 1830) |
| Lissotesta impervia (Strebel, 1908) |
| Trenchia argentinae (Clarke, 1961) |
| Tegula patagonica (d'Orbigny, 1835) |
| Margarites kophameli (Strebel, 1905) |
| Pendroma perplexa Dall, 1927 |
| Brookula calypso (Melvill & Standen, 1912) |
| Brookula powelli Clarke, 1961 |
| Seguenzia elegans Jeffreys, 1876 |
| Colpospirella algida (Melvill & Standen, 1912) |
| Pellilittorina pellita (Martens, 1885) |
| Pellilittorina setosa (E. A. Smith, 1875) |
| Eatoniella strebeli Ponder & Worsfold, 1994 |
| Eatoniella occulta Ponder, 1983 |
| Eatoniella argentinensis Castellanos & Fernández, 1972 |
| Eatoniella kerguelenensis regularis (E. A. Smith, 1915) |
| Fictonoba cymatodes (Melvill & Standen, 1916) |
| Heleobia australis (d'Orbigny, 1835) |
| Heleobia conexa (M. C. Gaillard, 1974) |
| Onoba transenna (Watson, 1886) |
| Onoba turqueti (Lamy, 1905) |
| Powellisetia inornata (Strebel, 1908) |
| Onoba amissa Ponder & Worsfold, 1994 |
| Onoba fuegoensis (Strebel, 1908) |
| Onoba grisea (Martens, 1885) |
| Onoba paucilirata (Melvill & Standen, 1912) |
| 'Vitrinella' agulhasensis Thiele, 1925 |
| Crepipatella dilatata (Lamarck, 1822) |
| Trochita pileolus (d'Orbigny, 1841) |
| Bostrycapulus odites R. Collin, 2005 |
| Crepidula intratesta Simone, 2006 |
| Crepidula plana Say, 1822 |
| Crepidula cachimilla Cledón, Simone & Penchaszadeh, 2004 |
| Trochita pileus (Lamarck, 1822) |
| Crepidula protea (d'Orbigny, 1841) |
| Crepidula argentina Simone, Pastorino & Penchaszadeh, 2000 |
| Capulus compressus E. A. Smith, 1891 |
| Macromphalina argentina Castellanos, 1975 |
| Lamellaria perspicua (Linnaeus, 1758) |
| Lamellaria patagonica E. A. Smith, 1881 |
| Tectonatica impervia (Philippi, 1845) |
| Euspira patagonica (Philippi, 1845) |
| Natica couteaudi Rochebrune & Mabille, 1885 |
| Falsilunatia soluta (Gould, 1847) |
| Natica limbata d'Orbigny, 1837 |
| Sinuber sculptum (Martens, 1878) |
| Euspira tenuis (Récluz, 1850) [Dubious name] |
| Notocochlis isabelleana (d'Orbigny, 1840) |
| Amauropsis anderssoni (Strebel, 1906) |
| Natica lebruni Rochebrune & Mabille, 1885 [Dubious name] |
| Bulbus carcellesi Dell, 1990 |
| Euspira strebeli (Dall, 1908) |
| Semicassis labiata iheringi (Carcelles, 1953) |
| Cabestana felipponei (Ihering, 1907) |
| Fusitriton cancellatus (Lamarck, 1816) |
| Tonna galea (Linnaeus, 1758) |
| Cardiapoda richardi Vayssière, 1903 |
| Epitonium georgettinum (Kiener, 1838) |
| Epitonium striatellum (Nyst, 1871) |
| Epitonium magellanicum (Philippi, 1845) |
| Epitonium fabrizioi Pastorino & Penchaszadeh, 1998 |
| Papuliscala diminuta Castellanos, Rolán & Bartolotta, 1987 |
| Pelseneeria sudamericana Pastorino & Zelaya, 2001 |
| Pisolamia brychia (Watson, 1883) |
| Melanella antarctica (Strebel, 1908) |
| Eulima auricincta (Abbott, 1958) |
| Eulimostraca subcarinata (d'Orbigny, 1841) |
| Melanella salvadori Castellanos, Rolán & Bartolotta, 1987 |
| Cerithiella axicostulata Castellanos, Rolán & Bartolotta, 1987 |
| Cerithiella macroura (Melvill & Standen, 1912) |
| Eumetula pulla (Philippi, 1845) |
| Eumetula michaelseni (Strebel, 1905) |
| Cerithiopsilla burdwoodiana (Melvill & Standen, 1912) |
| Urosalpinx cala (Pilsbry, 1897) |
| Trophon ohlini Strebel, 1904 |
| Risomurex nicocheanus (Pilsbry, 1900) |
| Coralliophila aedonia (Watson, 1886) |
| Xymenopsis muriciformis (King & Broderip, 1832) |
| Rapana venosa (Valenciennes, 1846) [Introduced] |
| Trophon columbarioides Pastorino & Scarabino, 2008 |
| Trophon amettei Carcelles, 1946 |
| Trophon pallidus (Broderip, 1833) |
| Trophon fasciolarioides Pastorino & Scarabino, 2008 |
| Trophon parodizi Pastorino, 2005 |
| Trophon geversianus (Pallas, 1774) |
| Trophon malvinarum Strebel, 1908 |
| Trophon plicatus (Lightfoot, 1786) |
| Coronium coronatum (Penna-Neme & Leme, 1978) |
| Trophon clenchi (Carcelles, 1953) |
| Trophon acanthodes Watson, 1882 |
| Xymenopsis bruceana (Melvill & Standen, 1916) [Dubious name] |
| Trophon triacanthus Castellanos, Rolán & Bartolotta, 1987 |
| Trophon pelseneeri E. A. Smith, 1915 |
| Xymenopsis buccinea (Lamarck, 1816) |
| Urosalpinx haneti (Petit, 1856) |
| Trophon patagonicus (d'Orbigny, 1839) |
| Aesopus obesus (Hinds, 1844) |
| Amphissa acuminata (E. A. Smith, 1915) |
| Parvanachis paessleri (Strebel, 1905) |
| Costoanachis sertulariarum (d'Orbigny, 1839) |
| Amphissa cancellata (Castellanos, 1979) |
| Parvanachis isabellei (d'Orbigny, 1839) |
| Astyris rubra (Martens, 1881) |
| Meteuthria multituberculata (Castellanos, Rolán & Bartolotta, 1987) |
| Parficulina problematica (A. W. B. Powell, 1951) |
| Pareuthria paessleri (Strebel, 1905) |
| Pareuthria michaelseni (Strebel, 1905) |
| Pareuthria ringei (Strebel, 1905) |
| Prosipho chordatus (Strebel, 1908) |
| Pareuthria plumbea (Philippi, 1844) |
| Falsitromina simplex (A. W. B. Powell, 1951) |
| Antistreptus rolani Castellanos, 1986 |
| Falsitromina powelli Dell, 1990 |
| Pareuthria magellanica (Philippi, 1849) |
| Savatieria areolata Strebel, 1905 |
| Antistreptus magellanicus Dall, 1902 |
| Pareuthria powelli Cernohorsky, 1977 |
| Savatieria deseadensis Castellanos & Fernández, 1975 |
| Savatieria chordata Castellanos, Rolán & Bartolotta, 1987 |
| Falsitromina bella (A. W. B. Powell, 1951) |
| Meteuthria martensi (Strebel, 1905) |
| Parabuccinum bisculptum (Dell, 1990) |
| Savatieria meridionalis (E. A. Smith, 1881) |
| Falsitromina fenestrata (A. W. B. Powell, 1951) |
| Americominella duartei Klappenbach & Ureta, 1972 |
| Fusinus frenguelli (Carcelles, 1953) |
| Buccinanops monilifer (Kiener, 1834) |
| Buccinanops globulosus (Kiener, 1834) |
| Buccinanops cochlidium (Dillwyn, 1817) |
| Buccinanops uruguayensis (Pilsbry, 1897) |
| Buccinanops deformis (King & Broderip, 1832) |
| Buccinanops duartei Klappenbach, 1961 |
| Buccinanops paytensis (Kiener, 1834) |
| Nassarius tango Scarabino, 2004 |
| Cancilla larranagai (Carcelles, 1947) |
| Olivella puelcha (Duclos, 1835) |
| Olivancillaria urceus (Röding, 1798) |
| Olivella plata (Ihering, 1908) |
| Olivancillaria auricularia (Lamarck, 1811) |
| Amalda josecarlosi Pastorino, 2003 |
| Olivancillaria deshayesiana (Ducros, 1857) |
| Olivella orejasmirandai Klappenbach, 1986 |
| Olivancillaria carcellesi Klappenbach, 1965 |
| Olivella tehuelcha (Duclos, 1835) |
| Olivancillaria uretai Klappenbach, 1965 |
| Olivella santacruzence Castellanos & Fernández, 1965 |
| Olivancillaria teaguei Klappenbach, 1964 |
| Zidona dufresnei (Donovan, 1823) |
| Odontocymbiola magellanica (Gmelin, 1791) |
| Odontocymbiola pescalia Clench & Turner, 1964 |
| Pachycymbiola ferussacii (Donovan, 1824) |
| Argentovoluta bottai (Vazquez & Caldini, 1989) |
| Minicymbiola corderoi (Carcelles, 1953) |
| Adelomelon beckii (Broderip, 1836) |
| Pachycymbiola brasiliana (Lightfoot, 1786) |
| Adelomelon riosi Clench & Turner, 1964 |
| Adelomelon ancilla (Lightfoot, 1786) |
| Odontocymbiola subnodosa (Leach, 1814) |
| Provocator palliatus (Kaiser, 1977) |
| Miomelon scoresbyanum A. W. B. Powell, 1951 |
| Tractolira germonae Harasewych, 1987 |
| Provocator corderoi Carcelles, 1947 |
| Volutomitra porcellana (Melvill & Standen, 1912) |
| Paradmete crymochara (Rochebrune & Mabille, 1885) |
| Paradmete fragillima (Watson, 1882) |
| Prunum rubens (Martens, 1881) |
| Volvarina warreni (Marrat, 1876) |
| Prunum martini (Petit, 1853) |
| Admete magellanica (Strebel, 1905) |
| Conus platensis Frenguelli, 1946 |
| Conus lemniscatus Reeve, 1849 |
| Conus clerii Reeve, 1844 |
| Terebra gemmulata Kiener, 1838 |
| Terebra doellojuradoi Carcelles, 1953 |
| Belalora cunninghami (E. A. Smith, 1881) |
| Propebela lateplicata (Strebel, 1905) |
| Leucosyrinx taludana Castellanos & Landoni, 1993 |
| Drillia janseni Strebel, 1905 [Extralimital?] |
| Spirotropis studeriana (Martens, 1878) |
| Drillia kophameli Strebel, 1905 |
| Mangelia fulvicans (Strebel, 1908) |
| Mangelia martensi (Strebel, 1905) |
| Propebela profunda Castellanos & Landoni, 1993 |
| Typhlodaphne purissima (Strebel, 1908) |
| Pleurotomella aguayoi (Carcelles, 1953) |
| Leucosyrinx angusteplicata (Strebel, 1905) |
| Mangelia michaelseni (Strebel, 1905) |
| Agladrillia fuegiensis (E. A. Smith, 1888) |
| Aforia goniodes (Watson, 1881) |
| Spirotropis patagonica (d'Orbigny, 1841) |
| Drillia suxdorfi Strebel, 1905 [Extralimital?] |
| Mangelia gazellae (Strebel, 1905) |
| Oenopota magellanica (Martens, 1881) |
| Thesbia michaelseni (Strebel, 1905) |
| Orbitestella patagonica Simone & Zelaya, 2004 |
| Adelphotectonica uruguaya (Carcelles, 1953) |
| Turritellopsis marplatensis Castellanos & Landoni, 1986 |
| Mathilda rhigomaches Melvill & Standen, 1912 |
| Mathilda malvinarum (Melvill & Standen, 1907) |
| Mathilda argentina Castellanos, 1990 |
| Omalogyra burdwoodiana Strebel, 1908 |
| Omalogyra taludana Castellanos, 1989 |
| Odostomia laevigata (d'Orbigny, 1841) |
| Turbonilla strebeli Corgan, 1969 |
| Eulimastoma canaliculatum (C. B. Adams, 1850) |
| Turbonilla rushii Bush, 1899 |
| Turbonilla zulmae Pimenta & Absalao, 1998 |
| Turbonilla paralaminata Castellanos, 1982 |
| Eulimella argentina Doello-Jurado, 1938 |
| Turbonilla macaensis Pimenta & Absalao, 2001 |
| Odostomia puelchana Castellanos, 1982 |
| Turbonilla interrupta (Totten, 1835) |
| Careliopsis styliformis (Mörch, 1875) |
| Turbonilla sanmatiensis Castellanos, 1982 |
| Turbonilla dispar Pilsbry, 1897 |
| Turbonilla americana (d'Orbigny, 1840) |
| Chrysallida multituberculata (Castellanos, 1982) |
| Turbonilla madrinensis Lamy, 1905 |
| Eulimella rudis Watson, 1886 |
| Eulimella bahiensis Castellanos, 1982 |
| Eulimella xenophyes (Melvill & Standen, 1912) |
| Peristichia lepta Pimenta, Santos & Absalao, 2008 |
| Odostomia nova Castellanos, 1982 |
| Turbonilla uruguayensis Pilsbry, 1897 |
| Acteon biplicatus (Strebel, 1908) |
| Acteon elongatus Castellanos, Rolán & Bartolotta, 1987 |
| Parvaplustrum tenerum A. W. B. Powell, 1951 |
| Toledonia bullata (Gould, 1847) |
| Toledonia perplexa Dall, 1902 |
| Cylichna cumberlandiana (Strebel, 1908) |
| Acteocina candei (d'Orbigny, 1841) |
| Cylichna georgiana (Strebel, 1908) |
| Philine thurmanni Ev. Marcus & Er. Marcus, 1969 |
| Philine argentina Carcelles, 1947 |
| Retusa sosa Ev. Marcus & Er. Marcus, 1969 |
| Retusa caelata (Bush, 1885) |
| Volvulella persimilis (Mörch, 1875) |
| Elysia patagonica Muniain & Ortea, 1997 |
| Clio antarctica Dall, 1908 |
| Cavolinia gibbosa (d'Orbigny, 1834) |
| Cavolinia uncinata (Rang, 1829) |
| Cuvierina atlantica Bé, MacClintock & Currie, 1972 |
| Clio andreae (Boas, 1886) |
| Cavolinia inflexa (Lesueur, 1813) |
| Cavolinia tridentata (Forsskål, 1775) |
| Limacina helicoides Jeffreys, 1877 |
| Limacina helicina rangii (d'Orbigny, 1834) |
| Limacina retroversa australis (Eydoux & Souleyet, 1840) |
| Cymbulia peronii Blainville, 1818 |
| Cymbulia sibogae Tesch, 1903 |
| Peracle diversa (Monterosato, 1875) |
| Peracle reticulata (d'Orbigny, 1834) |
| Peracle valdiviae (Meisenheimer, 1905) |
| Clione limacina australis (Bruguière, 1792) |
| Spongiobranchaea australis d'Orbigny, 1834 |
| Berthella patagonica (d'Orbigny, 1835) |
| Pleurobranchaea inconspicua Bergh, 1897 |
| Berthella platei (Bergh, 1898) |
| Tyrinna nobilis Bergh, 1898 |
| Atagema hispida (d'Orbigny, 1834) |
| Diaulula punctuolata (d'Orbigny, 1834) |
| Geitodoris pusae (Er. Marcus, 1955) |
| Rostanga byga Er. Marcus, 1958 |
| Gargamella immaculata Bergh, 1894 |
| Rostanga pulchra MacFarland, 1905 |
| Geitodoris patagonica Odhner, 1926 |
| Doris fontainii d'Orbigny, 1835 |
| Doris kerguelenensis (Bergh, 1884) |
| Cadlina sparsa (Odhner, 1921) |
| Ancula fuegiensis Odhner, 1926 |
| Polycera quadrilineata (O. F. Müller, 1776) |
| Galacera marplatensis (Franceschi, 1928) |
| Holoplocamus papposus Odhner, 1926 |
| Tritonia vorax (Odhner, 1926) |
| Tritonia australis (Bergh, 1898) |
| Marionia cucullata (Couthouy, 1852) |
| Aeolidia serotina Bergh, 1873 |
| Berghia rissodominguezi Muniain & Ortea, 1999 |
| Eubranchus fuegiensis Odhner, 1926 |
| Phidiana patagonica (d'Orbigny, 1836) |
| Cuthona georgiana (Pfeffer, 1886) |
| Siphonaria lessoni Blainville, 1824 |
| Nucula pisum Sowerby I, 1833 |
| Deminucula atacellana (Schenck, 1939) |
| Ennucula puelcha (d'Orbigny, 1842) |
| Ennucula perforata (Rhind & Allen, 1992) |
| Adrana patagonica (d'Orbigny, 1846) |
| Tindaria striata (King & Broderip, 1832) |
| Limopsis spicata Oliver & Allen, 1980 |
| Philobrya atlantica Dall, 1896 |
| Brachidontes darwinianus (d'Orbigny, 1842) |
| Perumytilus purpuratus (Lamarck, 1819) |
| Aulacomya atra (Molina, 1782) |
| Brachidontes rodriguezii (d'Orbigny, 1842) |
| Musculus viator (d'Orbigny, 1842) |
| Modiolus patagonicus (d'Orbigny, 1842) |
| Mytilus edulis Linnaeus, 1758 |
| Lithophaga patagonica (d'Orbigny, 1842) |
| Atrina seminuda (Lamarck, 1819) |
| Limea argentineae Allen, 2004 |
| Ostrea puelchana d'Orbigny, 1842 |
| Pododesmus leloiri Carcelles, 1941 |
| Zygochlamys patagonica (King & Broderip, 1832) |
| Aequipecten tehuelchus (d'Orbigny, 1842) |
| Carditamera plata (Ihering, 1907) |
| Diplodonta patagonica (d'Orbigny, 1842) |
| Phlyctiderma platense (Dall, 1899) |
| Waldo parasiticus (Dall, 1876) |
| Lasaea adansoni (Gmelin, 1791) |
| Kellia suborbicularis (Montagu, 1803) |
| Mysella mabillei (Dall, 1908) |
| Neolepton amatoi Zelaya & Ituarte, 2004 |
| Neolepton profundorum Allen, 2000 |
| Neolepton concentricum (Preston, 1912) |
| Neolepton yagan Zelaya & Ituarte, 2004 |
| Neolepton bonaerense Zelaya & Ituarte, 2004 |
| Neolepton cobbi (Cooper & Preston, 1910) |
| Neolepton falklandicum Dell, 1964 |
| Neolepton hupei Soot-Ryen, 1957 |
| Mactra marplatensis Doello-Jurado, 1949 |
| Mactra isabelleana d'Orbigny, 1846 |
| Raeta plicatella (Lamarck, 1818) |
| Mactra janeiroensis E. A. Smith, 1915 |
| Darina solenoides (King & Broderip, 1832) |
| Mulinia levicardo (E. A. Smith, 1881) |
| Mactra patagonica d'Orbigny, 1846 |
| Mesodesma mactroides Reeve, 1854 |
| Ensis macha (Molina, 1782) |
| Abra uruguayensis (Pilsbry, 1897) |
| Semele proficua (Pulteney, 1799) |
| Tellina petitiana d'Orbigny, 1846 |
| Angulus gibber (Ihering, 1907) |
| Strigilla carnaria (Linnaeus, 1758) |
| Isorropodon elongatus (Allen, 2001) |
| Petricola dactylus Sowerby I, 1823 |
| Clausinella gayi (Hupé, 1854) |
| Pitar patagonicus (d'Orbigny, 1842) |
| Retrotapes exalbidus (Dillwyn, 1817) |
| Ameghinomya antiqua (King & Broderip, 1832) |
| Anomalocardia brasiliana (Gmelin, 1791) |
| Pitar rostratus (Philippi, 1844) |
| Amiantis purpurata (Lamarck, 1818) |
| Corbula patagonica d'Orbigny, 1846 |
| Erodona mactroides Bosc, 1802 |
| Sphenia hatcheri Pilsbry, 1899 |
| Gastrochaena carcellesi Castellanos, 1970 |
| Barnea lamellosa (d'Orbigny, 1846) |
| Cyrtopleura lanceolata (d'Orbigny, 1846) |
| Nettastomella darwinii (Sowerby II, 1849) |
| Entodesma patagonicum (d'Orbigny, 1846) |
| Lyonsia alvarezii d'Orbigny, 1846 |
| Cardiomya knudseni (Allen & Morgan, 1981) |
| Cuspidaria barnardi Knudsen, 1970 |
| Cuspidaria tenella E. A. Smith, 1907 |
| Cuspidaria concentrica Thiele, 1912 |
| Myonera demistriata (Allen & Morgan, 1981) |
| Cuspidaria circinata (Jeffreys, 1876) |
| Periploma ovatum d'Orbigny, 1846 |
| Periploma compressum d'Orbigny, 1846 |
| Tonicia lebruni Rochebrune, 1884 |
| Tonicia calbucensis Plate, 1898 |
| Nuttallochiton hyadesi (Rochebrune, 1889) |
| Callochiton puniceus (Gould, 1846) |
| Ischnochiton stramineus (Sowerby I, 1832) |
| Hemiarthrum setulosum Dall, 1876 |
| Leptochiton kerguelensis (Haddon, 1886) |
| Leptochiton medinae (Plate, 1899) |
| Plaxiphora aurata (Spalowsky, 1795) |
| Neomenia herwigi Kaiser, 1976 |
| Loligo gahi d'Orbigny, 1835 |
| Loligo sanpaulensis Brakoniecki, 1984 |
| Graneledone macrotyla G. L. Voss, 1976 |
