Chondropomium callipeplum G.A. Solem, 1961
Tudora camagueyana (Torré)
Eutudora camoensis (C. de la Torre& P. Bartsch, 1941)
Tropidophora campanulata (L. Pfeiffer, 1846)
Parachondria campbellii (C.B. Adams, 1851)
Hendersonina canaliculata (J. Gundlachin L. Pfeiffer, 1863)
Pomatias canariensis (A.V.M.D. D'Orbigny,1840)
Chondropoma candeanum (A.V.M.D. D'Orbigny,1842)
Chondropoma canescens L. Pfeiffer, 1851
Chondropoma canescens alleni C. de la Torre & P. Bartsch,1938
Chondropoma canescens nipense C. de la Torre & P. Bartsch,1938
Annularia canoaensis (C. de la Torre& P. Bartsch, 1941)
Annularia cantarillensis (C. de la Torre& P. Bartsch, 1941)
Bermudezia capestanyi (C. de la Torre& P. Bartsch, 1941)
Parachondria capillacea (L. Pfeiffer)
Chondropoma carenasense H.A. Pilsbry & J. Henderson,1912
Chondropoma carenasense corrientesense C. de la Torre & P. Bartsch,1938
Chondropoma caribbaeum W.F. Clapp, 1914
Chondropoma caricae L. Pfeiffer
Tropidophora carinata (I. von Born, 1780)
Tropidophora carnicolor H.C. Fulton, 1902
Opisthosiphon caroli C.G. Aguayo, 1932
Eutudora catenata (A.A. Gould, 1843)
Ligatella cavernarum E. Fischer-Piette, F. Blanc& F. Salvat, 1969
Ligatella cavernarum majungana E. Fischer-Piette, Ch.P. Blanc, F. Blanc& F. Salvat, 1993
Chondropoma caymanbracensis H.A. Pilsbry, 1930
Chondropoma caymanense H.B. Preston, 1911
Chondrothyretes cerina C. de la Torre & P. Bartsch,1938
Chondrothyretes cerina roseoapicata (C. de la Torre& P. Bartsch, 1938)
Tropidophora chavani E. Fischer-Piette, 1949
Colobostylus chevalieri (C.B. Adams, 1851)
Choanopoma chiapasense (J.C.H. Crosse& P.H. Fischer, 1877)
Annularia chittyi (C.B. Adams, 1849)
Chondropoma chordatum (J. Gundlachin L. Pfeiffer, 1858)
Tropidophora chromium (P.M.A. Morelet, 1877)