Bullia cataphracta R.N. Kilburn, 1978
Zeuxis cautleyi (FOSSIL) (d'Archiac & Haime,1854 †)
Nassarius celebensis (M.M. Schepman, 1907)
Tritia cercadensis (FOSSIL) (C.J. Maury, 1917 †)
Cyllene cernohorskyi F. Fernandes & E. Rolán,1992
Nassarius cernohorskyi H.H. Kool, 2005
Bullia ceroplasta J.C. Melvill, 1898
Nassarius cerritensis (R. Arnold, 1903)
Antillophos chazaliei (P. Dautzenberg, 1900)
Nassarius chiereghinii (FOSSIL) (L.M.D. Bellardi, 1882 †)
Pallacera chipolana (FOSSIL) (W.H. Dall, 1896 †)
Tritiaria chira (FOSSIL) A.A. Olsson, 1931 †
Bulliopsis choctavensis (FOSSIL) (T.H. Aldrich, 1886 †)
Nassarius chowanensis (FOSSIL) Gardner, 1943 †
Tritia cinclis (FOSSIL) Gardner, 1944 †
Nassarius cinctellus (A.A. Gould, 1850)
Nassarius cinctellus (A. Adams, 1852)
Nassarius cinnamomeus (A. Adams, 1852)
Nassarius circumcinctus (A. Adams, 1852)
Nassarius clarus (F.P. Marrat, 1877)
Nassarius clathratus (FOSSIL) (I. von Born, 1778 †)
Caesia coalingensis (FOSSIL) R. Arnold, 1909 †
Buccinanops cochlidium (L.W. Dillwyn, 1817)
Buccinanops cochlidium gradatum G.P. Deshayes, 1844
Nassarius cockburnensis H.H. Kool & H. Dekker,2006
Cymatophos cocodilensis (FOSSIL) (F. Hodson, 1831 †)
Metaphos cocosensis (W.H. Dall, 1896)
Nassarius collarius (C.B. Adams, 1852)
Nassarius columbinus (FOSSIL) F. Van Dingenen, L. Ceulemans& al., 2015 †
Phrontis compacta (G.F. Angas, 1865)
Nassarius companyoi (FOSSIL) (C.F. Fontannes, 1879 †)
Nassarius compertus R. Fernández-Garcés, J. Espinosa& E. Rolán, 1990
Phrontis complanata (W.L. Powys, 1835)
Nassarius comptus (A. Adams, 1852)
Cyllene concinna A. Adams, 1851