Paratheba roseni (P. Hesse, 1914)
Monacha rothi L. Pfeiffer, 1841
Discula rotula (R.T. Lowe, 1831)
Leucozonella rubens (E.C. Von Martens, 1874)
Perforatella rubiginosa (A. Schmidt, 1853)
Pseudotrichia rubiginosa (E.A. Rossmässler, 1838)
Leucarchaica rudimentifera A.A. Schileyko& A.P. Pazylov, 1990
Monacha ruffoi F.L. Giusti, 1973
Leucozonella rufispira (E.C. Von Martens, 1874)
Leucozonella rufispira talassica A.A. Schileyko, 1972
Cernuella rugosa (J.B.P.A. Lamarck, 1822)
Rothifruticicola rugosissima Bank, Gittenberger& Neubert, 2013
Ichnusomunda sacchii F.L. Giusti & G. Manganelli,1998
Amandana salvanae (P. Fagot, 1886)
Metatheba samsunensis (L. Pfeiffer, 1868)
Leptaxis sanctaemariae (P.M.A. Morelet& H. Drouët, 1857)
Xerosecta sandaliotica W. De Mattia, 2014
Monacha saninensis (P.M. Pallary, 1939)
Anoplitella schaposchnikovi (O.W. Von Rosen, 1911)
Pyrenaearia schaufussi (W. Kobelt, 1876)
Kalitinaia schelkovnikovi (V.V. Bogachev, 1936)
Trochoidea schembrii L. Pfeiffer, 1848
Caucasigena schileykoi R.A. Tavasiev & Tavasieva,1980
Leucozonella schileykoi A.P. Pazylov & Kuchbaev,2001
Urticicola schlickumi (FOSSIL) Nordsieck, 2014 †
Caucasocressa schmalzi B. Hausdorf & G. Falkner,2001
Metafruticicola schuberti (J.R. Roth, 1839)
Monacha sedissana B. Hausdorf, 2000
Angiomphalia seductilis (C.A. Westerlund, 1898)
Xerocrassa seetzeni (L. Pfeiffer, 1847)
Euomphalia selecta (I. Krynicki, 1837)
Harmozica selecta (B. Klika, 1894)
Cernuella selmaniana R.A.M. Brandt, 1959
Hygromia semirugosa (W. Kobelt)
Abchasohela septentrionalis B. Hausdorf, 2001