Cerkesia contiae (FOSSIL) Monari, 2003 †
Eomiltha contorta (FOSSIL) (J.L.M. Defrance, 1823 †)
Gibbolucina contortula (FOSSIL) (G.P. Deshayes, 1857 †)
Phacoides contortulus (FOSSIL) Author unknown †
Lucinoma contracta (FOSSIL) (T. Say, 1824 †)
Loripes contrarius (R.W. Dunker, 1846)
Myrtea cookei (FOSSIL) A.A. Olsson, 1931 †
Pillucina copiosa E.A. Glover & D.W. Taylor,2007
Minilucina coriolis R. von Cosel & P. Bouchet,2008
Lucina corpulenta (FOSSIL) W.H. Dall, 1903 †
Austriella corrugata (G.P. Deshayes, 1843)
Austriella corrugata philippinarum (S.C.T. Hanley, 1856)
Sphaera corrugata (FOSSIL) Sowerby, 1822 †
Poumea coselia E.A. Glover & Taylor,2007
Gardnerella cossmanni (FOSSIL) (A.L. Chavan, 1941 †)
Lucinisca costaricensis (FOSSIL) A.A. Olsson, 1922 †
Clathrolucina costata (A.V.M.D. D'Orbigny,1846)
Sphaeriola crassicostata (FOSSIL) (A.V.M.D. D'Orbigny,1850 †)
Lucina crassidens (FOSSIL) Wood, 1879 †
Cardiolucina crassilirata (R. Tate, 1887)
Gonimyrtea crassiuscula M. Yokoyama, 1927
Liralucina craticula E.A. Glover & D.W. Taylor,2007
Parvilucina crenella (W.H. Dall, 1901)
Lucina crenulata (FOSSIL) Wood, 1840 †
Parvilucina crenulata (FOSSIL) (T.A. Conrad, 1840 †)
Lucinisca cribrarius (FOSSIL) (T. Say, 1824 †)
Myrtea cristata (E.A. Smith, 1885)
Pteromyrtea cristata (FOSSIL) J. Marwick, 1931 †
Tellidorella cristulata S.S. Berry, 1963
Funafutia crosseana (A. Issel, 1869)
Codakia cubana W.H. Dall, 1901
Divalucina cumingi (Adams & G.F. Angas,1863)
Divaricella cumulata (FOSSIL) (W.M. Gabb, 1864 †)
Myrtea curta (FOSSIL) †
Lucina dalikiensis (FOSSIL) Cox, 1936 †