Bullia cataphracta R.N. Kilburn, 1978 Mozambique, Inhambane35 mm
Zeuxis cautleyi (FOSSIL) (d'Archiac & Haime,1854 †)
Nassarius celebensis (M.M. Schepman, 1907) Australia, Port Hedland8 mm
Tritia cercadensis (FOSSIL) (C.J. Maury, 1917 †) Dominican Republic5 mm
Cyllene cernohorskyi F. Fernandes & E. Rolán,1992 Angola12 mm
Nassarius cernohorskyi H.H. Kool, 2005 Marquesas Islands8,7 mm
Bullia ceroplasta J.C. Melvill, 1898 Arabian Gulf
Nassarius cerritensis (R. Arnold, 1903) Costa Rica19,8 mm
Antillophos chazaliei (P. Dautzenberg, 1900) Venezuela10 mm
Nassarius chiereghinii (FOSSIL) (L.M.D. Bellardi, 1882 †)
Pallacera chipolana (FOSSIL) (W.H. Dall, 1896 †) United States, Florida, Calhoun
Tritiaria chira (FOSSIL) A.A. Olsson, 1931 † Piura, Peru
Bulliopsis choctavensis (FOSSIL) (T.H. Aldrich, 1886 †) Alabama, Choctaw County
Nassarius chowanensis (FOSSIL) Gardner, 1943 † USA, North Carolina, Pamlico
Tritia cinclis (FOSSIL) Gardner, 1944 † Florida7 mm
Nassarius cinctellus (A.A. Gould, 1850) New Caledonia
Nassarius cinctellus (A. Adams, 1852) Philippines, Olango Island7,8 mm
Nassarius cinnamomeus (A. Adams, 1852) Philippines, Mactan Island26 mm
Nassarius circumcinctus (A. Adams, 1852) Greece, Mytilene19 mm
Nassarius clarus (F.P. Marrat, 1877) Exmouth, West Australia18 mm
Nassarius clathratus (FOSSIL) (I. von Born, 1778 †) Italy, Piemonte
Caesia coalingensis (FOSSIL) R. Arnold, 1909 †
Buccinanops cochlidium (L.W. Dillwyn, 1817) Argentina, Rio Negro Province93,4 mm
Buccinanops cochlidium gradatum G.P. Deshayes, 1844 Uruguay76,5 mm
Nassarius cockburnensis H.H. Kool & H. Dekker,2006 Australia, Fremantle9,4 mm
Cymatophos cocodilensis (FOSSIL) (F. Hodson, 1831 †) Venezuela, Paraguana Peninsula42 mm
Metaphos cocosensis (W.H. Dall, 1896) Cocos Island
Nassarius collarius (C.B. Adams, 1852) Panama12 mm
Nassarius columbinus (FOSSIL) F. Van Dingenen, L. Ceulemans& al., 2015 † France, Bretagne10,3 mm
Phrontis compacta (G.F. Angas, 1865)
Nassarius companyoi (FOSSIL) (C.F. Fontannes, 1879 †) Spain, Malaga45 mm
Nassarius compertus R. Fernández-Garcés, J. Espinosa& E. Rolán, 1990 Cuba4,22 mm
Phrontis complanata (W.L. Powys, 1835) Costa Rica10 mm
Nassarius comptus (A. Adams, 1852) La Reunion Island26 mm
Cyllene concinna A. Adams, 1851 Japan, Tanegashima Island18 mm