Circlotoma callusa C.F. Laseron, 1958
Teinostoma calvertense (FOSSIL) Martin, 1904 †
Vitrinella campylochila H.A. Pilsbry & A.A. Olsson,1952
Vitrinella canaliculata F. Rubio, R. Fernández-Garcés& E. Rolán, 2011
Tornus cancellatus W. Adam & J. Knudsen,1969
Teinostoma cansadoi W. Adam & J. Knudsen,1969
Vitrinella caperata (R. Tate, 1899)
Tornus caraboboensis (N.E. Weisbord, 1962)
Teinostoma carbonnieri F.P. Jousseaume, 1881
Ponderinella cardosi E. Rolán & F. Rubio, 2002
Solariorbis carianus H.A. Pilsbry & A.A. Olsson,1952
Vitrinella carinata (A.V.M.D. D'Orbigny,1842)
Tholostoma carinata C.F. Laseron, 1958
Teinostoma carinatum (FOSSIL) d'Orbigny, 1911 †
Tornus carinatus (A. Adams, 1863)
Solariorbis carinatus (P.P. Carpenter, 1857)
Teinostoma carinicallus H.A. Pilsbry& J.T.L. McGinty, 1946
Vitrinella carinifex W.H. Dall, 1927
Solariorbis carinulatus (P.P. Carpenter, 1857)
Ponderinella carlosi E. Rolán & F. Rubio, 2002
Teinostoma caronensis (FOSSIL) W.C. Mansfield, 1925 †
Teinostoma carpenteri A. Adams, 1861
Cochliolepis catherinae K.H. Barnard, 1958
Teinostoma cecinella W.H. Dall, 1919
Cyclostremiscus cerrosensis (P. Bartsch, 1907)
Idioraphe chipolanum (FOSSIL) (W.H. Dall, 1892 †)
Circulus choshiensis T. Habe, 1961
Teinostoma cienfuegosense F. Rubio, R. Fernández-Garcés& E. Rolán, 2011
Lydiphnis cincta (P.P. Carpenter, 1857)
Vitrinella cingulata (R.A. Philippi, 1852)
Pterolabrella cingulata (FOSSIL) (J.A. Bartrum, 1919 †)
Circulus cinguliferus (A. Adams, 1850)
Teinostoma ciskae M.J. Faber, 1995
Aorotrema cistronium (W.H. Dall, 1889)
Solariorbis clara (FOSSIL) N.F. Sohl, 1960 †