Aciona Leach, 1815 accepted as Epitonium Röding, 1798 (source of synonymy)
Acmaea Eschscholtz, 1833 (additional source)
Acmaea (Acmaea) Eschscholtz, 1833 accepted as Acmaea Eschscholtz, 1833 (basis of record)
Acmaea (Acmaea) angulata (A. d'Orbigny, 1845) † accepted as Acmaea angulata (A. d'Orbigny, 1845) † (basis of record)
Acmaea (Acmaea) mitra Rathke, 1833 accepted as Acmaea mitra Rathke, 1833 (basis of record)
Acmaea (Acmaea) pseudolaevigata Sintsov, 1892 † accepted as Acmaea pseudolaevigata Sintsov, 1892 † (basis of record)
Acmaea (Acmaea) reussi Sintsov, 1892 † accepted as Acmaea reussi Sintsov, 1892 † (basis of record)
Acmaea (Acmaea) subcostata Sintsov, 1892 † accepted as Flexitectura subcostata (Sintsov, 1892) † (basis of record)
Acmaea (Acmaea) tenuissima Sintsov, 1892 † accepted as Flexitectura tenuissima (Sinzov, 1892) † (basis of record)
Acmaea (Collisella) Dall, 1871 accepted as Lottia J. E. Gray, 1833 (basis of record)
Acmaea (Collisellina) Dall, 1871 accepted as Patelloida Quoy & Gaimard, 1834 (additional source)
Acmaea (Patelloida) Quoy & Gaimard, 1834 accepted as Patelloida Quoy & Gaimard, 1834 (basis of record)
Acmaea (Patelloida) rugosa (Quoy & Gaimard, 1834) accepted as Patelloida rugosa Quoy & Gaimard, 1834 (basis of record)
Acmaea (Tectura) J. E. Gray, 1847 accepted as Tectura J. E. Gray, 1847 (additional source)
Acmaea (Tectura) virginea (O. F. Müller, 1776) accepted as Tectura virginea (O. F. Müller, 1776) (basis of record)
Acutiscala de Boury, 1909 accepted as Epitonium Röding, 1798 (basis of record)
Aizyella Cossmann, 1889 † accepted as Tricolia (Aizyella) Cossmann, 1889 † represented as Tricolia Risso, 1826 (basis of record)
Archaeogastropoda accepted as Vetigastropoda (additional source)
Architectoma J. E. Gray, 1847 accepted as Architectonica Röding, 1798 (source of synonymy)
Architectonica (Architectonica) Röding, 1798 accepted as Architectonica Röding, 1798 (basis of record)
Architectonica (Architectonica) carocollatum (Lamarck, 1822) † accepted as Simplexollata carocollata (Lamarck, 1822) † (basis of record)
Architectonica (Nipteraxis) Cossmann, 1916 † accepted as Nipteraxis Cossmann, 1916 † (additional source)
Architectonica (Nipteraxis) subplicata (A. d'Orbigny, 1852) † accepted as Pseudotorinia subplicata (A. d'Orbigny, 1852) † (basis of record)
Architectonica (Pseudotorinia) Sacco, 1892 accepted as Pseudotorinia Sacco, 1892 (additional source)
Architectonica (Pseudotorinia) bifida Deshayes, 1863 † accepted as Nipteraxis bifidus (Deshayes, 1863) † (basis of record)
Architectonica (Pseudotorinia) dumontii (Nyst, 1845) † accepted as Discotectonica dumontii (Nyst, 1845) † (basis of record)
Architectonica (Solariaxis) Dall, 1892 accepted as Granosolarium Sacco, 1892 (basis of record)
Architectonica (Solariaxis) millegranum (Lamarck, 1822) † accepted as Granosolarium millegranum (Lamarck, 1822) † (basis of record)
Astraea Röding, 1798 (additional source)
Astraea (Calcar) Montfort, 1810 accepted as Astralium Link, 1807 (basis of record)
Astraeinae Davies, 1935 accepted as Turbininae Rafinesque, 1815 (basis of record)
Astralium (Tylastralium) Sacco, 1896 † accepted as Bolma Risso, 1826 (source of synonymy)
Barbotella grossocostata (Radovanović & Pavlović, 1893) † accepted as Sarmatigibbula (Barbotella) hoernesi (Barbot de Marny, 1869) † represented as Sarmatigibbula hoernesi (Barbot de Marny, 1869) † (basis of record)
Barbotella laevigatoomaliusii (Kolesnikov, 1930) † accepted as Sarmatigibbula (Barbotella) hoernesi (Barbot de Marny, 1869) † represented as Sarmatigibbula hoernesi (Barbot de Marny, 1869) † (basis of record)
Bifrontia Deshayes, 1832 † accepted as Omalaxis Deshayes, 1832 † (source of synonymy)
Bittiidae Cossmann, 1906 accepted as Bittiinae Cossmann, 1906 (basis of record)
Bolina Rafinesque, 1815 accepted as Phasianella Lamarck, 1804 (basis of record)
Bolma (Bolma) Risso, 1826 accepted as Bolma Risso, 1826 (basis of record)
Bolma (Bolma) meynardi (Michelotti, 1847) † accepted as Bolma meynardi (Michelotti, 1847) † (basis of record)
Bolma (Bolma) perangulata (Sacco, 1896) † accepted as Bolma perangulata (Sacco, 1896) † (basis of record)
Bolma (Bolma) perangulata var. spinosa Friedberg, 1928 † accepted as Bolma perangulata (Sacco, 1896) † (basis of record)
Bolma (Ormastralium) Sacco, 1896 † accepted as Bolma Risso, 1826 (basis of record)
Bolma (Ormastralium) carinata (Borson, 1821) † accepted as Bolma carinata (Borson, 1821) † (basis of record)
Bolma meynardi (Michelotti, 1847) † (basis of record)
Buccinum australis Gmelin, 1791 accepted as Buccinum australe Gmelin, 1791 accepted as Phasianella australis (Gmelin, 1791) (basis of record)
Buckmanninia Cossmann, 1920 † accepted as Buckmanina Cossmann, 1920 † (basis of record)
Calceolata Iredale, 1918 accepted as Neritilia E. von Martens, 1875 (basis of record)
Calceolata pusilla (C. B. Adams, 1850) accepted as Neritilia pusilla (C. B. Adams, 1850) (basis of record)
Calliomphalus Cossmann, 1888 † (additional source)
Calliostoma (Anceps) adelae (A. d'Orbigny, 1845) † accepted as Anceps adelae (A. d'Orbigny, 1845) † (basis of record)
Calliostoma (Anceps) curvilineata (Sinzov, 1877) † accepted as Gibbula curvilineata (Sinzov, 1877) † (basis of record)
Calliostoma (Anceps) elegantula (Sinzov, 1880) † accepted as Gibbula zonatopunctata (Sinzov, 1875) † (basis of record)
Calliostoma (Anceps) marginata (Eichwald, 1830) † accepted as Gibbula marginata (Eichwald, 1830) † (basis of record)
Calliostoma (Anceps) subturriculoides (Sinzov, 1897) † accepted as Gibbula subturriculoides (Sinzov, 1897) † (basis of record)
Calliostoma (Astele) Swainson, 1855 accepted as Astele Swainson, 1855 (basis of record)
Calliostoma (Astele) subcarinata (Swainson, 1855) accepted as Astele subcarinata Swainson, 1855 (basis of record)
Calliostoma (Calliostoma) Swainson, 1840 represented as Calliostoma Swainson, 1840 (basis of record)
Calliostoma (Calliostoma) conulus (Linnaeus, 1758) represented as Calliostoma conulus (Linnaeus, 1758) (basis of record)
Calliostoma (Insperata) Korobkov, 1955 † (original description)
Calliostoma (Insperata) podolicoformis (V. P. Kolesnikov, 1935) † accepted as Sarmatigibbula podolica (Dubois de Montpéreux, 1831) † (basis of record)
Calliostoma (Insperata) sulcatopodolica (V. P. Kolesnikov, 1930) † accepted as Sarmatigibbula podolica (Dubois de Montpéreux, 1831) † (basis of record)
Calliostoma (Manotrochus) P. Fischer, 1885 accepted as Jujubinus Monterosato, 1884 (source of synonymy)
Cantharidium Schaufuss, 1869 accepted as Cantharidus Montfort, 1810 (source of synonymy)
Cantharidus (Cantharidus) Montfort, 1810 represented as Cantharidus Montfort, 1810 (basis of record)
Cantharidus (Cantharidus) opalus (Martyn, 1784) represented as Cantharidus opalus (Martyn, 1784) (basis of record)
Cantharidus (Jujubinus) Monterosato, 1884 accepted as Jujubinus Monterosato, 1884 (basis of record)
Cantharidus (Jujubinus) exasperatus (Pennant, 1777) accepted as Jujubinus exasperatus (Pennant, 1777) (basis of record)
Cantharidus (Jujubinus) matonii (Payraudeau, 1826) † accepted as Jujubinus exasperatus (Pennant, 1777) (basis of record)
Cantharidus (Jujubinus) turriculus (Eichwald, 1830) † accepted as Jujubinus turricula (Eichwald, 1830) † (basis of record)
Cantharidus (Strigosella) Sacco, 1896 accepted as Steromphala J. E. Gray, 1847 (basis of record)
Cantharidus (Strigosella) strigosus (Gmelin, 1791) accepted as Steromphala cineraria (Linnaeus, 1758) (basis of record)
Cantharidus (Thalotia) J. E. Gray, 1847 accepted as Thalotia J. E. Gray, 1847 (additional source)
Cantharidus (Thalotia) conicus (J. E. Gray, 1826) accepted as Thalotia conica (J. E. Gray, 1826) (basis of record)
Cantharidus (Thalotia) sulcatus (Lamarck, 1804) † accepted as Jujubinus sulcatus (Lamarck, 1804) † accepted as Jujubinus helenae Pacaud, 2017 † (basis of record)
Canthorbis Swainson, 1840 accepted as Astraea Röding, 1798 (source of synonymy)
Cemoria Risso, 1826 accepted as Puncturella R. T. Lowe, 1827 (source of synonymy)
Chlamydoglyphis Pilsbry, 1891 accepted as Lucapina J. E. Gray, 1835 (source of synonymy)
Cittarium R. A. Philippi, 1847 (additional source)
Clanculopsis Monterosato, 1880 accepted as Clanculus (Clanculopsis) Monterosato, 1880 represented as Clanculus Montfort, 1810 (source of synonymy)
Clanculus robusta Friedberg, 1928 † accepted as Clanculus robustus Friedberg, 1928 † (additional source)
Cocculina Dall, 1882 (basis of record)
Cocculinacea Dall, 1882 accepted as Cocculinoidea Dall, 1882 (basis of record)
Cocculinidae Dall, 1882 (additional source)
Collonia J. E. Gray, 1850 (basis of record)
Collonia (Bonnetella) Cossmann, 1908 † accepted as Bonnetella Cossmann, 1908 † (basis of record)
Collonia (Bonnetella) planispira (Cossmann, 1907) † accepted as Bonnetella planispira (Cossmann, 1907) † (basis of record)
Collonia (Circulopsis) Cossmann, 1902 † accepted as Circulopsis Cossmann, 1902 † (basis of record)
Collonia (Circulopsis) megalomphalus Cossmann, 1902 † accepted as Circulopsis megalomphalus (Cossmann, 1902) † (basis of record)
Collonia (Collonia) J. E. Gray, 1850 represented as Collonia J. E. Gray, 1850 (basis of record)
Collonia (Collonia) marginata (Lamarck, 1804) † represented as Collonia marginata (Lamarck, 1804) † (additional source)
Collonia (Heniastoma) Cossmann, 1918 † represented as Collonia J. E. Gray, 1850 (basis of record)
Collonia (Heniastoma) flammulata Cossmann, 1888 † accepted as Collonia flammulata Cossmann, 1888 † (additional source)
Collonia (Parvirota) Cossmann, 1902 † accepted as Adeorbella Briart & Cornet, 1887 † (basis of record)
Collonia (Parvirota) rotaria (Deshayes, 1863) † accepted as Adeorbella rotatoria (Deshayes, 1863) † (basis of record)
Conulus Nardo, 1841 accepted as Calliostoma Swainson, 1840 (source of synonymy)
Costatopatella Pallary, 1912 accepted as Patella Linnaeus, 1758 (source of synonymy)
Cryptochordinae Korobkov, 1955 † (original description)
Cyclostoma Lamarck, 1799 accepted as Epitonium Röding, 1798 (source of synonymy)
Cyclostrema Marryat, 1819 (basis of record)
Cyclostrematidae P. Fischer, 1885 accepted as Liotiidae J. E. Gray, 1850 (basis of record)