Kimboraga cascadensis F. Köhler, 2010
Cupedora cassandra (L. Pfeiffer, 1864)
Nannochlora cassiniensis (E.A. Smith, 1894)
Amplirhagada castra G.A. Solem, 1981
Polydontes castrensis (L. Pfeiffer, 1856)
Xeromelon catherinae F. Criscione & F. Köhler,2016
Ganesella catocyrta (J.F. Quadras& O.F. von Möllendorff, 1895)
Semotrachia caupona G.A. Solem, 1993
Cooperconcha centralis G.A. Solem, 1992
Amphidromus centrocelebensis G. Bollinger, 1918
Pachya cepoides (H.C. Lea, 1841)
Bentosites cerea (J.C. Cox, 1864)
Noctepuna cerea (C. Hedley, 1894)
Beddomea ceylanica (L. Pfeiffer, 1846)
Ramogenia challengeri (G.P.L.K. Gude, 1906)
Figuladra challisi (J.C. Cox, 1873)
Papustyla chancei (J.C. Cox, 1870)
Papuina chapmani J.C. Cox, 1870
Planispira chariessa (H.A. Pilsbry, 1891)
Kimberleytrachia chartacea F. Köhler, 2011
Neocepolis cherrieri P. Dautzenberg & H. Fischer,1908
Neocepolis cherrieri carinata P. Dautzenberg & H. Fischer,1908
Neocepolis cherrieri depressa P. Dautzenberg & H. Fischer,1908
Neocepolis cherrieri edentula P. Dautzenberg & H. Fischer,1908
Mandarina chichijimana R. Tiba, 1989
Labyrinthus chiriquensis H.A. Pilsbry, 1910
Amphidromus chloris (L.A. Reeve, 1848)
Camaena choboensis (J.F. Mabille, 1889)
Camaena choboensis inesilla (J.F. Mabille, 1889)
Papuina choiseulensis J.W. Brazier, 1869
Amphidromus chrisabbasi N.N. Thach, 2017
Turgenitubulus christenseni G.A. Solem, 1981
Camaena chuongi Thach, 2016
Camaena cicatricosa (O.F. Müller, 1774)
Camaena cicatricosa connectens P. Dautzenberg & H. Fischer,1905