Monetaria caputserpentis caputophidii (F.A. Schilder, 1927)
Monetaria caputserpentis kenyonae F.A. Schilder & M. Schilder,1938
Monetaria caputserpentis mikado F.A. Schilder & M. Schilder,1938
Monetaria caputserpentis reticula P. Dautzenberg & J.L. Bouge,1933
Barycypraea caputviperae (FOSSIL) (Martin, 1899 †)
Propustularia caribaea (FOSSIL) Schilder, 1939 †
Lyncina carneola (C. Linnaeus, 1758)
Lyncina carneola crassa (J.F. Gmelin, 1791)
Lyncina carneola propinqua (A. Garrett, 1879)
Siphocypraea carolinensis (FOSSIL) (T.A. Conrad, 1841 †)
Muracypraea caroniensis (FOSSIL) (C.J. Maury, 1925 †)
Nucleolaria cassiaui C.M. Burgess, 1965
Cypraeovula castanea (H.C. Higgins, 1868)
Cypraeovula castanea latebrosa S. Swarts& W. Liltved in W. Liltved, 2000
Cypraeovula castanea malani F.Jr. Lorenz & B. de Bruin,2009
Cribrarula catholicorum (F.A. Schilder& M. Schilder, 1938)
Pseudozonaria cathyae (FOSSIL) Groves, 1997 †
Erronea caurica (C. Linnaeus, 1758)
Erronea caurica blaesa (T. Iredale, 1939)
Erronea caurica corrosa (J.F. Gronovius, 1781)
Erronea caurica dracaena (I. von Born, 1778)
Erronea caurica elongata (G. Perry, 1811)
Erronea caurica insolita L. Bozzetti, 2017
Erronea caurica longior T. Iredale, 1935
Erronea caurica nigrocincta F.A. Schilder, 1924
Erronea caurica obscurata F.A. Schilder, 1940
Erronea caurica quinquefasciata (P.F. Röding, 1798)
Erronea caurica quinquefasciata nabequensis (E.L. Heiman & H.K. Mienis,2000)
Erronea caurica samoensis F.Jr. Lorenz, 2002
Muracypraea cayapa (FOSSIL) (H.A. Pilsbry& A.A. Olsson, 1941 †)
Erosaria cernica (G.B. III Sowerby, 1870)
Erosaria cernica kermadecensis A.W.B. Powell, 1958
Erosaria cernica leforti (J.R. Senders & P. Martin,1987)
Erosaria cernica marielae C.N. Cate, 1960
Erosaria cernica ogasawarensis F.A. Schilder, 1944