Bradybaena cochinchinensis (L. Pfeiffer, 1862)
Stenogyropsis cocoa Páll-Gergely & Hunyadi,2017
Calocochlia codonensis J.G. Hidalgo, 1888
Trishoplita collinsoni (A. Adams, 1868)
Helicostyla collodes (G.B. I Sowerby, 1841)
Trishoplita commoda (A. Adams, 1868)
Helicostyla concinna G.B. I Sowerby, 1841
Helicostyla concinna archeri (W.J. Clench, 1936)
Helicostyla concinna virens L. Pfeiffer, 1842
Aegista conella A. Adams, 1868
Euhadra congenita (E.A. Smith, 1878)
Euhadra congenita hickonis W. Kobelt
Bradybaena connectens (O.F. von Möllendorff,1899)
Helicostyla connectens (O.F. von Möllendorff,1899)
Pseudobuliminus conoidius P.M. Heude, 1890
Plectotropis conomphala H.A. Pilsbry & Y. Hirase,1903
Trishoplita conospira (L. Pfeiffer, 1851)
Cathaica constantiae (A. Adams, 1870)
Trishoplita conulina (E.C. Von Martens, 1867)
Bradybaena coreanica A. Adams & L.A. Reeve,1850
Calocochlia coronadoi J.G. Hidalgo, 1868
Pseudobuliminus corti (A.R.J.B. Bavay& P. Dautzenberg, 1908)
Helicostyla corticolor W. Kobelt, 1911
Plectotropis couturieri (A.R.J.B. Bavay& P. Dautzenberg, 1908)
Euhadra craspedocheila (A. Adams, 1868)
Chloraea cristatella J.F. Quadras& O.F. von Möllendorff, 1893
Calocochlia cryptica W.J. Broderip, 1840
Calocochlia cryptica cineracea C.G. Semper, 1877
Calocochlia cryptica crenata (W.J. Broderip, 1841)
Calocochlia cryptica latitans (W.J. Broderip, 1841)
Calocochlia cumingii L. Pfeiffer, 1842
Calocochlia cumingii pfeifferi C.G. Semper, 1877
Helicostyla cunctator L.A. Reeve, 1830
Canistrum curta (G.B. I Sowerby, 1841)
Cochlostyla cuyoensis L. Pfeiffer