Chione cancellata (C. Linnaeus, 1767)
Lajonkairia cancellata (J.F. Gmelin, 1791)
Choristodon cancellatus A.E. Verrill, 1885
Costacallista canoasensis (FOSSIL) A.A. Olsson, 1931 †
Asaphinoides cantauranus (FOSSIL) (F. Hodson, 1931 †)
Chimela caperata (FOSSIL) (J. de C. Sowerby 1826) †
Hyphantosoma caperi (K.L. Lamprell& J.M. Healy, 1997)
Periglypta capillacea (FOSSIL) (G.P. Deshayes, 1857 †)
Globivenus capricornea (C. Hedley, 1908)
Tivelina capsuloides (FOSSIL) A.E.M. Cossmann, 1886 †
Hyphantosoma carbaseus (FOSSIL) (R.J.L. Guppy, 1866 †)
Chioneryx cardioides (J.B.P.A. Lamarck, 1818)
Petricola carditoides (T.A. Conrad, 1837)
Irus carditoides J.B.P.A. Lamarck, 1818
Periglypta caribbeana (FOSSIL) Anderson, 1927 †
Lirophora carlottae (FOSSIL) K.V.W. Palmer, 1927 †
Xenoloupia carmenensis (FOSSIL) Clark & J.W. Durham,1946 †
Marcia carneola (J.B.P.A. Lamarck, 1818)
Pleiorytis caroniana (FOSSIL) C.J. Maury, 1925 †
Dosinia carpentariana K.L. Lamprell & J.M. Healy,1997
Tawera carri (FOSSIL) (J. Marwick, 1927 †)
Lirophora cartagenensis (FOSSIL) F. Hodson, 1926 †
Calpitaria carteri (FOSSIL) (d'Archaic & Haime,1854 †)
Transennella caryonautes S.S. Berry, 1963
Chione casa (FOSSIL) H.F.A. von Ihering,1907 †
Venus casina C. Linnaeus, 1758
Venus casina aradasii M.E.J. Bucquoy, P. Dautzenberg& G.F. Dollfus, 1889
Chione casinoides (FOSSIL) (B. de Basterot, 1825 †)
Venus cassinaeformis (M. Yokoyama, 1926)
Meretrix casta (J.F. Gmelin, 1791)
Dosinia castigata (FOSSIL) J. Marwick, 1960 †
Agriopoma castoriana (FOSSIL) Gardner, 1943 †
Lioconcha castrensis (C. Linnaeus, 1758)
Agriopoma catharia (W.H. Dall, 1902)
Gafrarium catillum C. Hedley, 1909