Mambrinia brevidentata (FOSSIL) (T.H. Aldrich, 1885 †)
Semicassis bulla T. Habe, 1961
Semicassis bulla fernandesi (R.N. Kilburn, 1975)
Semicassis bulla obscura J.T. Kuroda, 1962
Echinophoria caelatura (FOSSIL) (T.A. Conrad, 1830 †)
Semicassis calantica (FOSSIL) (G.P. Deshayes, 1835 †)
Galeodea californica (FOSSIL) Clark, 1942 †
Semicassis canaliculata (J.G. Bruguière, 1792)
Cypraecassis cantaurana (FOSSIL) A.G. Beu, 2010 †
Echinophoria carnosa Kuroda & T. Habe, 1961
Ceiba ceibaensis (FOSSIL) Clark & J.W. Durham,1946 †
Semicassis centiquadrata (A. Valenciennes, 1832)
Casmaria cernica (G.B. III Sowerby, 1888)
Galeodea cheops (FOSSIL) Abbass, 1967 †
Cassis chevallieri (FOSSIL) A.E.M. Cossmann, 1889 †
Cypraecassis chipolana (FOSSIL) Duerr, 2001 †
Echinophoria cingulae (FOSSIL) Garvie, 2013 †
Oocorys clericus J.F. Quinn, 1980
Cypraecassis coarctata (Sowerby, 1825)
Sconsia cocleana (FOSSIL) A.A. Olsson, 1922 †
Cassis cornuta (C. Linnaeus, 1758)
Echinophoria coronadoi (J.C.H. Crosse, 1867)
Galeodea coronata (FOSSIL) G.P. Deshayes, 1830 †
Cassis costulifera (FOSSIL) A.G. Beu, 2010 †
Semicassis craticulata (F.M. Euthyme, 1885)
Cypraecassis cypraeiformis (FOSSIL) (S. Borson, 1820 †)
Dalium dalli (FOSSIL) Böse, 1906 †
Echinophoria dalli (FOSSIL) R.E. Dickerson, 1917 †
Semicassis decipiens (R.N. Kilburn, 1980)
Phalium decussatum (C. Linnaeus, 1758)
Phalium decussatum flammeolum (P.F. Röding, 1798)
Cassis delta (FOSSIL) C.F. Parker, 1948 †
Semicassis deneseplicata (FOSSIL) K. Martin, 1916 †
Galeodea depressa (FOSSIL) Buch, 1831 †
Cassis depressior (FOSSIL) K. Martin, 1879 †