Monacha hemitricha P. Hesse, 1914 Turkey
Archaica heptapotamica (W.A. Lindholm, 1927) Russia, Kyzyl-Saj
Xerocrassa heraklea B. Hausdorf & J. Sauer,2009 Greece, Crete
Trochoidea hesperidum (P.M.A. Morelet, 1880) Morocco, Mers8 mm
Metafruticicola hikmeti V. Hüdec, 1971 Turkey
Xerosecta hillyeriana (M. Paulucci, 1882) Italy, Sardinia Island
Trochoidea hipponensis (P.M.A. Morelet, 1857)
Suboestophora hispanica (G.P.L.K. Gude, 1910) Spain, Valencia15,43 mm
Trichia hispida (C. Linnaeus, 1758) Netherlands10 mm
Candidula hola (J.R. Bourguignat, 1887) Greece
Kokotschashvilia holotricha (O. Böttger, 1884) Russia, Georgia
Helicella homadensis (J. Rutlant Basset, 1874) Morocco, cap Cantin19 mm
Monachoides homalospira (FOSSIL) (A.E. Reuss, 1861 †) Czech Republic, Chomutov18 mm
Amandana homeyeri (W.L.H. Dohrn& D.F. Heynemann, 1862) Spain, Majorca9 mm
Xeropicta homoleuca (Š. Brusina, 1870)
Moreletina horripila (P.M.A. Morelet& H. Drouët, 1857) Azores
Helicella huidobroi M.F. Azpeitia, 1925 Spain7 mm
Cernuella hydruntina (W. Kobelt, 1883) Italy, Lecce
Narina hypophaea (W.A. Lindholm, 1927) Kazakhstan
Xerosecta iae (P.M. Pallary, 1896) Morocco, cap Cantin10 mm
Caucasocressa ibera B. Hausdorf, 2003 Caucasus
Helicella iberica (J.P. Rambur, 1869) Spain9,92 mm
Xerosecta icmalea P.M. Pallary
Monacha ignorata (O. Böttger, 1905) Syria
Xeropicta ilanae L. Forcart, 1981 Israel10 mm
Nanaja illuminata A.A. Schileyko, 1978 Uzbekistan5 mm
Helicopsis imperialis J. Ahuir Galindo, 1992 Morocco, Agadir18,2 mm
Perforatella incarnata (O.F. Müller, 1774) France, Lyon14 mm
Portugala inchoata (P.M.A. Morelet, 1845) Portugal15 mm
Caseolus innominatus (J.E. Gray, 1825) Portugal, Madeira5 mm
Caseolus innominatus compactus (R.T. Lowe, 1831) Portugal, Madeira5 mm
Helicopsis instabilis (B. Ziegler in E.A. Rossmässler, 1835) Ukraine
Leucozonella intermedia K.K. Uvalieva, 1995 Pakistan
Helicella interpres (C.A. Westerlund, 1879) Greece, Attica
Candidula intersecta (J.L.M. Poiret, 1801) France, Hardelot8 mm