Conominolia conica (FOSSIL) (P. Marshall, 1917 †)
Umbonium conicum A. Adams & L.A. Reeve,1850
Antisolarium conominolium (FOSSIL) C.R. Laws, 1936 †
Clanculus consobrinus R. Tate, 1893
Austrocochlea constellata (S.M. Souverbie, 1863)
Austrocochlea constricta (J.B.P.A. Lamarck, 1822)
Austrocochlea constricta zebra (K.T. Menke, 1829)
Oxystele convexodepressa (FOSSIL) (G. Cocconi, 1873 †)
Gibbula corallinoides T.A. de M. Monterosato,1896
Clanculus corallinus (J.F. Gmelin, 1791)
Gibbula corallioides É.A.A. Locard, 1898
Isanda coronata (Adams, 1853)
Zethalia coronata (FOSSIL) J. Marwick, 1948 †
Umbonium costatum (L.C. Kiener, 1839)
Conominolia cowei (FOSSIL) A.G. Beu, 1969 †
Stomatella crassa R.P. Montrouzier in S.M. Souverbie& R.P. Montrouzier, 1870
Gibbula crassigranosa (FOSSIL) (Tenison Woods, 1877 †)
Cantharidus crenelliferus (A. Adams, 1853)
Trochus creniferus A.E. Verrill & S. Smith,1880
Isanda crenulifera A. Adams
Trochus crimeana V.V. Anistratenko& Y.I. Starobogatov, 1991
Chlorodiloma crinita (R.A. Philippi, 1849)
Clanculus cristinae F. Rubio & E. Rolán, 2002
Clanculus cruciatus (C. Linnaeus, 1758)
Diloma crusoeana H.A. Pilsbry, 1893
Broderipia cumingii A. Adams, 1851
Diloma cuneata (C. Linnaeus, 1758)
Jujubinus curinii C. Bogi & E. Campani,2006
Pseudostomatella cycloradiata G.W. Nowell-Usticke, 1959
Gibbula dalli (FOSSIL) H.F.A. von Ihering,1897 †
Stomatolina danblumi B.S. Singer & H.K. Mienis,1999
Eurytrochus danieli (J.C.H. Crosse, 1862)
Clelandella dautzenbergi S. Gofas, 2005
Coelotrochus davegibbsi (B.A. Marshall, 1998)
Rubritrochus declivis (P. Forsskål in C. Niebuhr,1775)