Theba gittenbergeri (A. Puente, 1994) Spain, Almeria15 mm
Chilostoma glaciale (A.E.J. Férussac, 1821) France, Ubaye13 mm
Hemicycla glasiana R.J. Shuttleworth, 1843 Spain, Granada21,1 mm
Murella globularis (J. Zelebor in R.A. Philippi, 1836) Italy, Sicily Island21 mm
Murella globularis ascherae (W. Kobelt, 1880) Italy, Sicily Island19 mm
Murella globularis conspicua (L. Benoit, 1857) Italy, Sicily Island20 mm
Iberus globulosus (C.R. Böttger, 1913) Spain27,68 mm
Hemicycla glyceia (J.F. Mabille, 1882) Spain
Hemicycla glyceia silensis Cavero, 1988 Canary Islands22 mm
Helix godetiana W. Kobelt, 1878 Greece
Hemicycla gomerensis (P.M.A. Morelet, 1864) Canary Islands
Allognathus graellsianus (L. Pfeiffer, 1848) Baleares21 mm
Hemicycla granomalleata (T.V. Wollaston, 1878) Canary Islands, Gran Canaria23 mm
Theba grasseti (A. Mousson, 1872) Canary Islands17,9 mm
Superba grisea (P. Subai, 1990) Albania
Iberus gualtieranus (C. Linnaeus, 1758) Spain44 mm
Iberus gualtieranus angustatus E.A. Rossmässler, 1854 Spain34,9 mm
Iberus gualtieranus laurenti J.R. Bourguignat, 1870 Spain33,4 mm
Iberus gualtieranus mariae (C. Cobos, 1979) Spain30,6 mm
Iberus gualtieranus minor B. Serradell, 1912 Spain36,6 mm
Iberus gualtieroloxanus E. Garcia San Nicolás,1957 Spain25 mm
Hemicycla guamartemes J.P.A. Grasset, 1857 Canary Islands18 mm
Helix gussoneana L. Pfeiffer, 1848 Italy
Helix guttata E.J. Le Guillou, 1842 Moluccas9,6 mm
Assyriella guttata (G.A. Olivier, 1804) Israel
Helix haliotidea Auct. non C. Linnaeus,1758
Liburnica harpya (P. Subai, 1995) Albania
Helix hartungi J.A. Albers, 1852 Portugal, Madeira7 mm
Hemicycla hedybia (J.F. Mabille, 1882) Canary Islands
Thiessea heldreichi (L. Pfeiffer, 1846) Greece
Codringtonia helenae P. Subai, 2005 Greece, Peloponnesus
Helix heliaca D'Orbigny, 1835
Josephinella hemonica (J. Thiesse, 1884) Greece
Mesodontopsis heriacensis (FOSSIL) (Depéret, 1895 †)
Helix herza J.F. Mabille, 1889 Vietnam, Tonkin40,9 mm