Charpentieria clavata balsamoi (P. von Ströbel, 1850) Italy, Bergamo15,3 mm
Charpentieria clavata lorinae (P.V. Gredler, 1869) Italy18,9 mm
Charpentieria clavata variscoi N. Pini, 1883 Italy, Lombardia Region17,7 mm
Tauphaedusa claviformis (L. Pfeiffer, 1850)
Micropontica closta O. Böttger, 1881 Caucasus
Albinaria coa (O. Böttger, 1889) Greece
Columbinia cocaensis (F.P. Jousseaume, 1900) Ecuador17,4 mm
Phaedusa coccygea (P.V. Gredler, 1887) HuBei, China28 mm
Phaedusa cochinchinensis (L. Pfeiffer, 1841) South Vietnam
Oospira coffea H. Nordsieck, 2012 China, Guangxi province24,6 mm
Cristataria colbeauiana (L. Pfeiffer, 1862) Turkey, Antalya24 mm
Sciocochlea collasi (R. Sturany, 1904) Greece, Corfu
Columbinia columbiana W. Polinski, 1924 Colombia
Pararillya columellaris (FOSSIL) (A. Michaud, 1838 †)
Cochlodinastra comensis (L. Pfeiffer, 1850) Switzerland13,1 mm
Cochlodinastra comensis lucensis (C. Gentiluomo, 1868) Italy, Alpi Apuane12,3 mm
Cochlodinastra comensis trilamellata (A. Schmidt, 1868) Italy13,5 mm
Albinaria compressa (L. Pfeiffer, 1850) Greece, Kithira Island
Strigileuxina concavelamellata (F.E. Loosjes, 1963) Turkey10,4 mm
Graciliaria concilians (A. Schmidt, 1857) Romania12 mm
Albinaria confusa (O. Böttger, 1878) Greece, Peleponnesos14 mm
Strigilodelima conspersa (L. Pfeiffer, 1848) Greece, Vikos18 mm
Papilliphaedusa constellata (P.M. Heude, 1886)
Albinaria contaminata (E.A. Rossmässler, 1835) Greece, Tsilivi15 mm
Albinaria contaminata artaensis (O. Böttger, 1878) Greece
Albinaria contaminata incommoda O. Böttger, 1878 Greece, Zakinthos Island16 mm
Albinaria contaminata lieberuti (J.G.F. de Charpentier,1852) Greece12 mm
Albinaria contaminata muraria (A. Schmidt, 1868) Greece
Albinaria contaminata odysseus (O. Böttger, 1878) Greece, Ithaca15 mm
Albinaria contaminata periporon T.C.M. Kemperman& E. Gittenberger, 1992 Greece15,7 mm
Medora contracta (E.A. Rossmässler, 1842) Montenegro21 mm
Medora contracta seriola (C.A. Westerlund, 1884) Montenegro
Columbinia convexivolvis H. Nordsieck, 2005
Synprosphyma cookei (H.B. Preston, 1912)
Steatonenia cooki (H.A. Pilsbry, 1919) Peru