Arianta schmidti E.A. Rossmässler, 1836 Austria
Isaurica schuetti P. Subai, 1994 Turkey
Helix secernenda E.A. Rossmässler, 1837 Montenegro36 mm
Tingitana seguyana (J. Péchaud, 1883) Morocco, cap Cantin28,9 mm
Hemicycla semitecta A. Mousson, 1872 Canary Islands19,6 mm
Marmorana serpentina (A.E.J. Férussac, 1801) Italy, Pisa21 mm
Frechenia serresi (FOSSIL) H. Nordsieck, 2017 †
Liburnica setigera (E.A. Rossmässler, 1836) Croatia30 mm
Campylaea setosa (E.A. Rossmässler, 1836) Croatia28,1 mm
Helicigona setosa (A.E.J. Férussac, 1832) Croatia
Tingitana shioum (P.M. Pallary, 1910) Morocco, Skoura32,3 mm
Rossmaessleria sicanoides (W. Kobelt, 1881) Morocco, cap Cantin20 mm
Rossmaessleria sicanoides albina (W. Kobelt, 1881) Morocco, cap Cantin18 mm
Rossmaessleria sicanoides polita (W. Kobelt, 1881) Morocco, cap Cantin18 mm
Rossmaessleria sicanoides unifasciata (W. Kobelt, 1881) Morocco, cap Cantin18 mm
Ambigua signata (A.E.J. Férussac, 1821) Italy, Abruzzo18 mm
Ambigua signata molteni Unknown Italy, Tuscany19 mm
Agalactochilus silesiacus (FOSSIL) (Andreae, 1902) †
Megalotachea silvana (FOSSIL) (E. Klein, 1853 †)
Cepaea silvatica (J.P.R. Draparnaud, 1801) Switzerland19,5 mm
Superba skipetarica (P. Subai, 1995) Albania
Superba skipetarica asketa (P. Subai, 1995) Albania
Alabastrina skouraensis (P.M. Pallary, 1933) Morocco, cap Cantin22 mm
Eremina smaraensis J. Ahuir Galindo, 2015 Morocco, cap Cantin26,6 mm
Helix sobrina A.E.J. Férussac, 1821
Helix solidus R.T. Lowe, 1831 Portugal, Madeira
Theba solimae C.F. Sacchi, 1955 Morocco, cap Cantin16 mm
Alabastrina soluta (A. Michaud, 1833) Morocco, cap Cantin20 mm
Alabastrina soluta minor (P.M. Pallary) Morocco, cap Cantin16 mm
Alabastrina soluta rufa (P.M. Pallary, 1926) Morocco, cap Cantin19 mm
Helix sonensis (FOSSIL) M.A. Peyrot, 1932 † France, Aquitaine
Chilostoma sphaeriostoma J.R. Bourguignat, 1857 Greece, Attica18,3 mm
Chilostoma sphaeriostoma hymettii W. Kobelt, 1876 Greece19,8 mm
Otala sphaeromorpha J.R. Bourguignat, 1883 Morocco, cap Cantin25 mm
Levantina spiriplana (G.A. Olivier, 1801) Israel