• Benthodolium abyssorum A. E. Verrill & S. Smith, 1884 accepted as Oocorys sulcata P. Fischer, 1884
• Benthodolium pacificum Dall, 1896 accepted as Oocorys verrillii (Dall, 1889)
• Casis sulcifera G. B. Sowerby 1, 1850 † accepted as Cassis sulcifera G. B. Sowerby I, 1850 †
• Cassidaria (Galeodea) cingulifera R. Hoernes & Auinger, 1884 † accepted as Eudolium subintermedium (A. d'Orbigny, 1852) †
• Cassidaria (Galeodea) sturi Kittl, 1887 † (uncertain > unassessed)
• Cassidaria aquensis Magne & Vergneau-Saubade, 1973 † accepted as Cassis retusa Michelotti, 1861 †
• Cassidaria arntzenii K. Martin, 1914 † accepted as Galeodea arntzenii (K. Martin, 1914) †
• Cassidaria bistriata Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria brevidentata Aldrich, 1885 † (uncertain > unassessed)
• Cassidaria bucquoyi Locard, 1886 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria cahuzaci Magne & Saubade, 1976 † accepted as Galeodea megacephala cahuzaci (Magne & Saubade, 1976) †
• Cassidaria cingulata Lamarck, 1822 accepted as Linatella caudata (Gmelin, 1791)
• Cassidaria coronata Deshayes, 1830 † accepted as Galeodea coronata (Deshayes, 1830) †
• Cassidaria cretacea J. Müller, 1851 † accepted as Trochactaeon cretaceus (J. Müller, 1851) †
• Cassidaria cythara (Brocchi, 1814) † accepted as Morum cythara (Brocchi, 1814) †
• Cassidaria cythara var. minor Grateloup, 1845 † accepted as Morum minor (Grateloup, 1845) †
• Cassidaria dautzenbergi Locard, 1886 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria depressa Buch, 1831 † accepted as Galeodea depressa (Buch, 1831) †
• Cassidaria depressa R. A. Philippi, 1844 accepted as Galeodea rugosa (Linnaeus, 1771)
• Cassidaria deshayesii Duval, 1841 accepted as Fusimorio deshayesii (Duval, 1841)
• Cassidaria desori d'Archiac & Haime, 1854 † accepted as Galeodea desori (d'Archiac & Haime, 1854) †
• Cassidaria dubia Aldrich, 1885 † (uncertain > unassessed)
• Cassidaria echinophora (Linnaeus, 1758) accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora coronata Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora ingens Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. adriatica Mascarini, 1884 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. densetuberculata Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. dentata Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. dilatata Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. dubia Cerulli-Irelli, 1911 accepted as Galeodea rugosa (Linnaeus, 1771)
• Cassidaria echinophora var. globosa Bucquoy, Dautzenberg & Dollfus, 1882 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. globosocordonata Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. minima Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. multituberculata Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. mutica Tiberi, 1863 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. obsoleta Bucquoy, Dautzenberg & Dollfus, 1882 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. solida Bucquoy, Dautzenberg & Dollfus, 1882 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. subdiadema Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria echinophora var. subnodulosa Bucquoy, Dautzenberg & Dollfus, 1882 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria enodis Deshayes, 1865 † accepted as Galeodea enodis (Deshayes, 1865) †
• Cassidaria erbi Haanstra & Spiker, 1932 † accepted as Galeodea erbi (Haanstra & Spiker, 1932) †
• Cassidaria formosa Alekseev, 1963 † (uncertain > taxon inquirendum)
• Cassidaria funiculosa Deshayes, 1835 † accepted as Galeodea funiculosa (Deshayes, 1835) †
• Cassidaria gradata Tate, 1889 † accepted as Galeodea gradata (Tate, 1889) †
• Cassidaria harpaeformis Grateloup, 1827 † accepted as Morum cythara (Brocchi, 1814) †
• Cassidaria javana K. Martin, 1879 † accepted as Eudolium crosseanum (Monterosato, 1869)
• Cassidaria laevigata G. B. Sowerby I, 1850 † accepted as Sconsia laevigata (G. B. Sowerby I, 1850) †
• Cassidaria laevigata Grateloup, 1834 † (uncertain > unassessed)
• Cassidaria lintea Conrad, 1847 † (uncertain > unassessed)
• Cassidaria minbuensis Noetling, 1895 † accepted as Fusimorio minbuensis (Noetling, 1895) †
• Cassidaria mirabilis Wilckens, 1910 †
• Cassidaria mirabilis var. papillosa Wilckens, 1910 † (uncertain > unassessed)
• Cassidaria mutica Michelotti, 1861 † accepted as Eudolium muticum (Michelotti, 1861) †
• Cassidaria orbigny Bellardi, 1852 † accepted as Sconsia orbigny (Bellardi, 1852) †
• Cassidaria planotecta O. Meyer & Aldrich, 1886 † accepted as Morio planotecta (O. Meyer & Aldrich, 1886) †
• Cassidaria plicata Calcara, 1840 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria pliocenica Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria pretiosa Deshayes, 1865 † accepted as Galeodea pretiosa (Deshayes, 1865) †
• Cassidaria pschischica Korobkov, 1949 † (uncertain > taxon inquirendum)
• Cassidaria pseudobistriata Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria scilla Risso, 1826 † accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria singularis Deshayes, 1865 † accepted as Galeodea singularis (Deshayes, 1865) †
• Cassidaria striata Lamarck, 1816 accepted as Sconsia grayi A. Adams, 1855
• Cassidaria striatula Bellardi & Michelloti, 1840 † (uncertain > unassessed)
• Cassidaria sublaevigata Guppy, 1866 † (uncertain > unassessed)
• Cassidaria sulcata F. W. Hutton, 1873 † accepted as Galeodea sulcata (F. W. Hutton, 1873) †
• Cassidaria textiliosa Deshayes, 1835 † accepted as Galeodea textiliosa (Deshayes, 1835) †
• Cassidaria tuberculata Risso, 1826 † accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria tuberculifera Hupé, 1854 † accepted as Echinophoria monilifera (G. B. Sowerby I, 1846) †
• Cassidaria tyrrhena (Gmelin, 1791) accepted as Galeodea rugosa (Linnaeus, 1771)
• Cassidaria tyrrhena atlantica Settepassi, 1970 accepted as Galeodea rugosa (Linnaeus, 1771)
• Cassidaria tyrrhena dentata Settepassi, 1970 accepted as Galeodea rugosa (Linnaeus, 1771)
• Cassidaria tyrrhena elongata Settepassi, 1970 accepted as Galeodea rugosa (Linnaeus, 1771)
• Cassidaria tyrrhena soluta Settepassi, 1970 accepted as Galeodea rugosa (Linnaeus, 1771)
• Cassidaria uniseriata Settepassi, 1970 accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidaria washingtoniana C. E. Weaver, 1912 † accepted as Olequahia washingtoniana (C. E. Weaver, 1912) †
• Cassidaria wilsoni Tate, 1889 † accepted as Galeodea wilsoni (Tate, 1889) † accepted as Echinophoria wilsoni (Tate, 1889) †
• Cassidea (Cassidaria) echinophora (Linnaeus, 1758) accepted as Galeodea echinophora (Linnaeus, 1758)
• Cassidea (Cassidaria) echinophora var. placentina (Sacco, 1891) † (uncertain > unassessed)
• Cassidea (Cypraeicassis) crumena (Bruguière, 1792) accepted as Cypraecassis testiculus (Linnaeus, 1758)
• Cassidea (Cypraeicassis) crumena var. pseudocrumena (d'Orbigny, 1852) † (uncertain > unassessed)
• Cassidea (Cypraeicassis) crumena var. pseudocrumena ornata Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Echinophoria) intermedia (Brocchi, 1814) † accepted as Echinophoria intermedia (Brocchi, 1814) †
• Cassidea (Echinophoria) intermedia var. acutituberculata Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Echinophoria) intermedia var. depressa Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Echinophoria) intermedia var. fasciata Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Echinophoria) intermedia var. paucidentata Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Echinophoria) intermedia var. plioelegans Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Echinophoria) rondoletii (Basterot, 1825) † accepted as Echinophoria rondeleti (Basterot, 1825) †
• Cassidea (Echinophoria) rondoletii var. appenninica Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Echinophoria) rondoletii var. latiseriata Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Semicassis) anteniana K. Martin, 1931 † accepted as Semicassis anteniana (K. Martin, 1931) †
• Cassidea (Semicassis) bituminata K. Martin, 1933 † accepted as Galeodea bituminata (K. Martin, 1933)
• Cassidea (Semicassis) brasili Cossmann & Pissarro, 1905 † accepted as Cassis brasili (Cossmann & Pissarro, 1905) †
• Cassidea (Semicassis) laevigata (Defrance, 1817) † accepted as Semicassis laevigata (Defrance, 1817) †
• Cassidea (Semicassis) laevigata var. pliogloboides Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Semicassis) laevigata var. pliogloboides additamentata Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Semicassis) laevigata var. pliogloboides plioblonga Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Semicassis) laevigata var. pliogloboides pliocrassa Sacco, 1904 † (uncertain > unassessed)
• Cassidea (Semicassis) laevigata var. pliogloboides pliodepressa Sacco, 1904 † (uncertain > unassessed)