Candidula coudensis D.T. Holyoak& G.A. Holyoak, 2010 Portugal, Leiria
Cretigena crassicosta R.A. Bank, Gittenberger& E. Neubert, 2013 Greece, Crete
Narina crassicosta A.A. Schileyko, 1978 Kyrgyzstan11 mm
Actinella crassiuscula (T.D.A. Cockerell, 1921) Canary Islands, Tenerife11,05 mm
Kalitinaia crenimargo (L. Pfeiffer, 1847) Caucasus
Monacha crenophila L. Pfeiffer, 1857 Turkey
Xerocrassa cretica (L. Pfeiffer, 1841) Greece, Rhodos17 mm
Xerocrassa cretica bengasiana R.A.M. Brandt, 1959 Libya, Bengasi16 mm
Xerocrassa cretica subabiari R.A.M. Brandt, 1959 Libya16 mm
Monacha cretica B. Hausdorf, 2003 Greece, Crete Island
Xerotricha crispolanata (T.V. Wollaston, 1878) Canary Islands
Monacha crispulata (A. Mousson, 1861) Israel
Trochoidea cucullus E.C. Von Martens, 1873 Malta16,2 mm
Xerocrassa cuerdai (L. Gasull, 1963) Spain6,5 mm
Trochoidea cumiae P. Calcara, 1847 Italy, Lampedusa7,6 mm
Nanaja cumulata A.A. Schileyko, 1978 Uzbekistan15,9 mm
Ponentina curtivaginata D.T. Holyoak& G.A. Holyoak, 2012 Portugal
Trochoidea cyclodon D'Orbigny, 1839 Canary Islands, Gran Canaria7 mm
Helicopsis cyclostremoides G.B. Sowerby, 1904 Morocco, cap Cantin13,1 mm
Helicopsis cypriola (C.A. Westerlund, 1889) Cyprus6 mm
Pyrenaearia daanidentata J.G.M. Raven, 1988 Spain, Laredo
Shileykoia daghestana (W. Kobelt, 1877) Russia, Georgia
Hygrohelicopsis darevskii A.A. Schileyko, 1978 Caucasus
Lejeania darnaudi (L. Pfeiffer, 1856) Djibouti12 mm
Caucasocressa dasilepida (J.F. Mabille, 1881) Turkey
Xerosecta daurae P.M. Pallary, 1901 Morocco, cap Cantin11,35 mm
Xerocrassa davidiana (J.R. Bourguignat, 1863) Israel11 mm
Xerocrassa davidiana picardi F. Haas, 1933 Israel6 mm
Helicella davrae (P.M. Pallary, 1901)
Xerosecta debackeriana (P.M. Pallary, 1920) Morocco, cap Cantin18 mm
Metafruticicola dedegoelensis B. Hausdorf, B.A. Gümüs& M.Z. Yildirim, 2004 Turkey
Xeroleuca degenerans T. Kira, 1955 Morocco, cap Cantin22 mm
Xeroleuca degenerans validor (A. Mousson, 1874) Morocco, cap Cantin19 mm
Helicopsis dejecta (G.J. De Cristofori& G. Jan, 1832) Crimea13,5 mm
Geomitra delphinula (R.T. Lowe, 1831) Portugal, Madeira19 mm