| Full Current Name |
| Lottia subrugosa (d'Orbigny, 1841) |
| Diodora patagonica (d'Orbigny, 1839) |
| Fissurellidea patagonica (Strebel, 1907) |
| Fissurellidea megatrema d'Orbigny, 1839 |
| Calliostoma jucundum (Gould, 1849) |
| Photinula blakei (Clench & Aguayo, 1938) |
| Halistylus columna (Dall, 1890) |
| Tegula patagonica (d'Orbigny, 1835) |
| Brookula powelli Clarke, 1961 |
| Asthelys simplex (Watson, 1879) |
| Litiopa melanostoma Rang, 1829 |
| Echinolittorina lineolata (d'Orbigny, 1840) |
| Barleeia rubrooperculata (Castellanos & Fernández, 1972) |
| Caecum antillarum Carpenter, 1858 |
| Meioceras tumidissimum Folin, 1869 |
| Meioceras nitidum (Stimpson, 1851) |
| Caecum pulchellum Stimpson, 1851 |
| Caecum achirona (Folin, 1867) |
| Heleobia conexa (M. C. Gaillard, 1974) |
| Heleobia australis (d'Orbigny, 1835) |
| Onoba cruzi (Castellanos & Fernández, 1974) |
| Alvania herwigia (Castellanos & Fernández, 1974) |
| Crepidula plana Say, 1822 |
| Bostrycapulus odites R. Collin, 2005 |
| Calyptraea centralis (Conrad, 1841) |
| Crepidula protea (d'Orbigny, 1841) |
| Crepidula intratesta Simone, 2006 |
| Crepipatella dilatata (Lamarck, 1822) |
| Lamellaria branca Simone, 2004 |
| Tectonatica impervia (Philippi, 1845) |
| Notocochlis isabelleana (d'Orbigny, 1840) |
| Semicassis granulata (Born, 1778) |
| Cymatium parthenopeum (von Salis, 1793) |
| Ranella olearius (Linnaeus, 1758) |
| Cabestana felipponei (Ihering, 1907) |
| Tonna galea (Linnaeus, 1758) |
| Epitonium xenicima (Melvill & Standen, 1903) |
| Epitonium candeanum (d'Orbigny, 1842) |
| Epitonium angulatum (Say, 1831) |
| Epitonium magellanicum (Philippi, 1845) |
| Epitonium striatellum (Nyst, 1871) |
| Epitonium unifasciatum (Sowerby II, 1844) |
| Epitonium georgettinum (Kiener, 1838) |
| Epitonium albidum (d'Orbigny, 1842) |
| Janthina janthina (Linnaeus, 1758) |
| Melanella conoidea (Kurtz & Stimpson, 1851) |
| Eulima auricincta (Abbott, 1958) |
| Seila adamsii (H. C. Lea, 1845) |
| Cerithiopsis greenii (C. B. Adams, 1839) |
| Triphora medinae Parodiz, 1955 |
| Trophon iarae Houart, 1998 |
| Trophon acanthodes Watson, 1882 |
| Siratus beauii (Fischer & Bernardi, 1857) |
| Rapana venosa (Valenciennes, 1846) [Introduced] |
| Stramonita haemastoma (Linnaeus, 1767) |
| Trophon patagonicus (d'Orbigny, 1839) |
| Urosalpinx cala (Pilsbry, 1897) |
| Trophon pelseneeri E. A. Smith, 1915 |
| Coronium coronatum (Penna-Neme & Leme, 1978) |
| Urosalpinx haneti (Petit, 1856) |
| Parvanachis obesa (C. B. Adams, 1845) |
| Costoanachis sertulariarum (d'Orbigny, 1839) |
| Aesopus obesus (Hinds, 1844) |
| Astyris bonariensis (Castellanos & Fernández, 1967) |
| Metula agassizi Clench & Aguayo, 1941 |
| Buccinanops monilifer (Kiener, 1834) |
| Buccinanops uruguayensis (Pilsbry, 1897) |
| Buccinanops globulosus (Kiener, 1834) |
| Buccinanops deformis (King & Broderip, 1832) |
| Nassarius scissuratus (Dall, 1889) |
| Buccinanops duartei Klappenbach, 1961 |
| Buccinanops cochlidium (Dillwyn, 1817) |
| Cancilla larranagai (Carcelles, 1947) |
| Olivancillaria teaguei Klappenbach, 1964 |
| Olivancillaria urceus (Röding, 1798) |
| Olivancillaria contortuplicata (Reeve, 1850) |
| Olivella riosi Klappenbach, 1991 |
| Olivancillaria carcellesi Klappenbach, 1965 |
| Olivancillaria auricularia (Lamarck, 1811) |
| Olivella plata (Ihering, 1908) |
| Amalda josecarlosi Pastorino, 2003 |
| Olivella tehuelcha (Duclos, 1835) |
| Olivella formicacorsii Klappenbach, 1962 |
| Olivancillaria uretai Klappenbach, 1965 |
| Minicymbiola corderoi (Carcelles, 1953) |
| Adelomelon riosi Clench & Turner, 1964 |
| Pachycymbiola brasiliana (Lightfoot, 1786) |
| Odontocymbiola pescalia Clench & Turner, 1964 |
| Adelomelon ancilla (Lightfoot, 1786) |
| Zidona dufresnei (Donovan, 1823) |
| Granulina ovuliformis (d'Orbigny, 1842) |
| Prunum martini (Petit, 1853) |
| Conus lemniscatus Reeve, 1849 |
| Conus clerii Reeve, 1844 |
| Terebra doellojuradoi Carcelles, 1953 |
| Carinodrillia braziliensis (E. A. Smith, 1915) |
| Polystira formosissima (E. A. Smith, 1915) |
| Mangelia cingulata Strebel, 1908 |
| Adelphotectonica uruguaya (Carcelles, 1953) |
| Iselica globosa (H. C. Lea, 1843) |
| Turbonilla macaensis Pimenta & Absalao, 2001 |
| Turbonilla atypha Bush, 1899 |
| Boonea seminuda (C. B. Adams, 1839) |
| Eulimella argentina Doello-Jurado, 1938 |
| Eulimastoma canaliculatum (C. B. Adams, 1850) |
| Turbonilla dispar Pilsbry, 1897 |
| Turbonilla interrupta (Totten, 1835) |
| Boonea jadisi (Olsson & McGinty, 1958) |
| Turbonilla rushii Bush, 1899 |
| Odostomia laevigata (d'Orbigny, 1841) |
| Careliopsis styliformis (Mörch, 1875) |
| Turbonilla uruguayensis Pilsbry, 1897 |
| Turbonilla aracruzensis Pimenta & Absalao, 2004 |
| Bulla occidentalis A. Adams, 1850 |
| Cylichnella bidentata (d'Orbigny, 1841) |
| Retusa caelata (Bush, 1885) |
| Volvulella persimilis (Mörch, 1875) |
| Tritonia eriosi Ev. Marcus, 1983 |
| Fiona pinnata (Eschscholtz, 1831) |
| Melampus coffea (Linnaeus, 1758) |
| Siphonaria lessoni Blainville, 1824 |
| Nucula pisum Sowerby I, 1833 |
| Ennucula puelcha (d'Orbigny, 1842) |
| Nucula marshalli Schenck, 1939 |
| Deminucula atacellana (Schenck, 1939) |
| Nuculana larranagai Klappenbach & Scarabino, 1969 |
| Nuculana whitensis Farinati, 1978 |
| Glycymeris longior (Sowerby I, 1833) |
| Musculus viator (d'Orbigny, 1842) |
| Mytella charruana (d'Orbigny, 1842) |
| Mytilus edulis Linnaeus, 1758 |
| Brachidontes solisianus (d'Orbigny, 1842) |
| Brachidontes darwinianus (d'Orbigny, 1842) |
| Modiolus carvalhoi Klappenbach, 1966 |
| Crassostrea rhizophorae (Guilding, 1828) |
| Pleuromeris sanmartini Klappenbach, 1970 |
| Crassinella maldonadoensis (Pilsbry, 1897) |
| Felaniella vilardeboana (d'Orbigny, 1842) |
| Warrana besnardi (Klappenbach, 1962) |
| Mactra isabelleana d'Orbigny, 1846 |
| Mesodesma mactroides Reeve, 1854 |
| Tagelus plebeius (Lightfoot, 1786) |
| Abra uruguayensis (Pilsbry, 1897) |
| Strigilla carnaria (Linnaeus, 1758) |
| Eurytellina angulosa (Gmelin, 1791) |
| Petricola dactylus Sowerby I, 1823 |
| Tivela isabelleana (d'Orbigny, 1846) |
| Anomalocardia brasiliana (Gmelin, 1791) |
| Corbula lyoni Pilsbry, 1897 |
| Sphenia hatcheri Pilsbry, 1899 |
| Sphenia fragilis (H. & A. Adams, 1854) |
| Gastrochaena hians (Gmelin, 1791) |
| Periploma ovatum d'Orbigny, 1846 |
| Bushia rushii (Pilsbry, 1897) |
| Chaetopleura angulata (Spengler, 1797) |
| Loligo sanpaulensis Brakoniecki, 1984 |
| Graneledone yamana Kommritz, 2000 |
| Fissidentalium floridense (Henderson, 1920) |
| Antalis cerata (Dall, 1881) |
| Graptacme perlonga (Dall, 1881) |
| Fissidentalium amphialum (Watson, 1879) |
| Paradentalium infractum (Odhner, 1913) |
| Polyschides tetraschistus (Watson, 1879) |
