Camaena cicatricosa ducalis (O.F. Müller, 1774) China, Zhejiang
Camaena cicatricosa inflata (O.F. von Möllendorff,1885) China, Zhejiang44 mm
Landouria ciliocincta (O.F. von Möllendorff,1897) Indonesia19 mm
Papuina cingulata C. Hedley, 1891 Indo-Pacific
Chloritis circumdata (A.E.J. Férussac, 1821) Indonesia, Bali33,5 mm
Pleuroxia clydonigera R. Tate, 1894 Australia
Amphidromus cochinchinensis (L. Pfeiffer, 1857) South Vietnam
Mesodontrachia cockburnensis G.A. Solem, 1988 Australia, Victoria Bonaparte
Amplirhagada coffea F. Köhler, 2011 Western Australia, Kimberley
Basedowena cognata G.A. Solem, 1993 Australia, Lassiter's Cave
Gloreugenia cognata (G.P.L.K. Gude, 1907) Queensland
Amphidromus cognatus H.C. Fulton, 1907 Australia, Melville Island
Setobaudinia collingii (E.A. Smith, 1893) Australia
Minimelon colmani G.A. Solem, 1993 Western Australia
Obba columbaria G.B. Sowerby, 1841 Philippines, Polillo Island15 mm
Amphidromus columellaris O.F. von Möllendorff,1862 Indonesia30 mm
Amphidromus columellaris sierahensis H.A. Pilsbry, 1900 Arafura Sea, Tanimbar Island
Amplirhagada combeana T. Iredale, 1938 Australia, Bonaparte Archipelago16 mm
Amphidromus comes (L. Pfeiffer, 1861) Java, Pangandaran38 mm
Amphidromus comes polymorphous (C.M. Tapparone-Canefri,1874) Vietnam47 mm
Westraltrachia commoda T. Iredale, 1939 Western Australia
Chloritis conamphala G.P.L.K. Gude Solomon Islands
Ganesella concavospira (O.F. von Möllendorff,1901) Vietnam, Tonkin
Chloritis concisa L. Pfeiffer
Chloritis concisa cumingi G.P.L.K. Gude, 1906 Indonesia, Sorong61 mm
Chloritis condoriana (J.C.H. Crosse& P.H. Fischer, 1863) Vietnam
Rhynchotrochus confirmata B. Rensch, 1933 Papua New Guinea, Manus Island15 mm
Amplirhagada confusa G.A. Solem, 1981 West Australia, Mitchell Plateau
Globorhagada confusa F. Köhler, 2011 Australia, Katers Island
Crystallopsis conica G.P.L.K. Gude, 1907 Solomon Islands, San Cristobal Island32,7 mm
Megalacron coniformis (A.E.J. Férussac, 1821) Papua New Guinea
Posorites conscendens (J.C. Cox, 1866) Jamaica
Amphidromus constans H.C. Fulton, 1896 Indo-Pacific
Rhagada construa T. Iredale, 1939 Western Australia
Isomeria continua (L.A. Reeve, 1854)