Granulina cartwrighti (G.B. III Sowerby, 1915)
Volvarina casiguaya J. Espinosa, J.A. Ortea& Y.L. Diez, 2015
Mesoginella cassidiformis (R. Tate, 1878)
Prunum cassis (W.H. Dall, 1889)
Bullata castelli (FOSSIL) Abbass, 1967 †
Marginella caterinae L. Bozzetti, 1991
Prunum catochense T. Cossignani, 2004
Demissa cecalupoi (T. Cossignani, 2005)
Volvarina ceciliae J. Espinosa & J.A. Ortea,1999
Marginella celestae W. Massier & J. Rosado,2008
Marginella cenchridium (FOSSIL) A.E.M. Cossmann, 1896 †
Protoginella cenodoxa (FOSSIL) P.A. Maxwell, 1992 †
Granulina cerea C. Smriglio, F. Gubbioli& P. Mariottini, 2000
Volvarina cernita (É.A.A. Locard, 1897)
Prunum chagosi B. Hayes & F. Boyer, 1997
Marginella chalmersi J.R. le B. Tomlin& L.J. Shackleford, 1912
Dentimargo chaperi (F.P. Jousseaume, 1875)
Volvarina charbarensis (J.C. Melvill, 1897)
Volvarina charretonae J.A. Ortea, 2014
Dentimargo chastaingi (FOSSIL) (A.E.M. Cossmann, 1889 †)
Hyalina chicoi J. Espinosa & J.A. Ortea,1999
Serrata chipolana (FOSSIL) C.J. Maury, 1910 †
Prunum christineladdae (FOSSIL) C.J. Maury, 1917 †
Prunum chumi J. Espinosa & J.A. Ortea,2000
Volvarina cienaguera J. Espinosa, J.A. Ortea& L. Moro, 2010
Volvarina cienfueguera J. Espinosa, J.A. Ortea& Y.L. Diez, 2015
Prunum cinctum (L.C. Kiener, 1834)
Prunum cineraceum (W.H. Dall, 1889)
Volvarina cingalica F. Boyer, 2015
Dentimargo cingulatus F. Boyer, 2002
Prunum circumvittatum (N.E. Weisbord, 1962)
Granulina clandestina (G.B. Brocchi, 1814)
Cypraeolina clandestina (FOSSIL) (Brochhi, 1814 †)
Granulina clandestinella (A.R.J.B. Bavay, 1908)
Dentimargo clara K.H.J. Thiele, 1925