Chicoreus corrugatus ethiopius E.H. Vokes, 1978 Red Sea
Africanella coseli (R. Houart, 1989) Gabon, Cap Esterias28 mm
Chicoreus cosmani Abbott & Finlay, 1979 Jamaica
Urosalpinx cossmanni (FOSSIL) A.E. Ortmann, 1900 † Argentina, Santa Cruz
Pagodula cossmanni (É.A.A. Locard, 1897) Azores28,3 mm
Muricopsis costantiae (FOSSIL) (Ancona, 1871 †) Italy, Tuscany
Laevityphis costaricensis (FOSSIL) A.A. Olsson, 1922 † Costa Rica
Coralliophila costata (H.M.D. de Blainville,1832) Galapagos21,2 mm
Coralliophila costularis (J.B.P.A. Lamarck, 1816) Philippines, Cebu41 mm
Trophon coulmanensis E.A. Smith, 1907 Shetland Islands22 mm
Babelomurex couturieri (F.P. Jousseaume, 1898) Philippines, Aliguay Island45 mm
Siratus cracens R. Houart, 2014 Virgin Islands54,7 mm
Favartia cracentis (R. Houart, 1996) Indonesia, Ambon11,8 mm
Comptella crassa (FOSSIL) A.G. Beu, 1967 †
Muricopsis crassicosta (FOSSIL) (É.A. Benoist, 1873 †) France, Aquitaine29 mm
Vitularia crassicostata (FOSSIL) (G.P. Deshayes, 1835 †) France, Paris Basin
Nassa crassigranosa (FOSSIL) R. Tate, 1888 †
Ocenebra crassilabiatus (FOSSIL) Hilber, 1879 † Hungary, Bakony
Crassilabrum crassilabrum (Sowerby, 1834) Chile, Iquique38,2 mm
Ocenebra crassiliratus (FOSSIL) R. Tate, 1888 †
Minortrophon crassiliratus (H.H. Suter, 1908) New Zealand
Ergalatax crassulnata (C. Hedley, 1915) Australia, Broome29 mm
Hadriania craticulata (G.B. Brocchi, 1814) Madagascar38,8 mm
Timbellus crauroptera (R. Houart, 1991) New Caledonia11,4 mm
Mipus crebrilamellosus (G.B. III Sowerby, 1913) China, Zhejiang34 mm
Ocenebra credneri (FOSSIL) Hõrnes & M. Auinger,1885 †
Vitularia crenifer (R.P. Montrouzier, 1861) Philippines, Balut Island35 mm
Pterynotus crenulatus (FOSSIL) (P.F. Röding, 1798 †) France, Paris Basin
Pterynotus crenulatus tricarinatus (FOSSIL) (J.B.P.A. Lamarck,1803 †) France, Paris Basin33 mm
Pterynotus crenulatus tricuspidatus (FOSSIL) G.P. Deshayes, 1835 † France, Paris Basin43 mm
Murexiella crispangula (FOSSIL) (A. Heilprin, 1897 †) Russia, Moskva, Shchelkovskiy rayon
Muricopsis crispata (FOSSIL) (G.B. Brocchi, 1814 †) Austria
Terefundus crispulatus (H.H. Suter, 1908) New Zealand
Crassimurex crispus (FOSSIL) (J.B.P.A. Lamarck,1803 †) France, Haute-Normandie, Eure
Babelomurex cristatus (S. Kosuge, 1979) Philippines, Bohol Island27 mm