Rhagada sheaei F. Köhler, 2011
Kenyirus sheema J.K. Foon, S.K. Tan& R. Clements, 2015
Satsuma shigetai H. Minato, 1984
Chloritis siamensis O.F. von Möllendorff,1898
Chloritis sibutuensis (E.A. Smith, 1894)
Chloritis silenus (G.F. Angas, 1873)
Kimberleytrachia silvaepluvialis F. Criscione & F. Köhler,2015
Nipponochloritis silvaticus H. Minato, 1989
Glyptorhagada silveri (G.F. Angas, 1868)
Amphidromus similis H.A. Pilsbry, 1900
Pallidelix simonhudsoni J. Stanisic, 2015
Cristilabrum simplex G.A. Solem, 1981
Sinumelon simulante T. Iredale, 1938
Amplirhagada sinenomine F. Köhler, 2011
Amphidromus sinensis W.H. Benson, 1851
Amphidromus sinistralis (L.A. Reeve, 1849)
Amphidromus sinistralis decolor C.M. Tapparone-Canefri,1884
Amphidromus sinistralis lutea E.C. Von Martens, 1899
Rhynchotrochus sinucola T. Iredale, 1941
Basedowena siparium F. Criscione & F. Köhler,2016
Landouria smironensis (A. Mousson, 1849)
Amphidromus smithi H.C. Fulton, 1896
Papuina smithi C.R. Böttger, 1919
Polydontes sobrina (A.E.J. Férussac, 1819)
Kenyirus sodhii R. Clements & S.K. Tan,2012
Amplirhagada solemiana F. Köhler, 2010
Retroterra solituda G.A. Solem, 1985
Cristilabrum solitudum G.A. Solem, 1981
Rhagada solorensis E.C. Von Martens, 1863
Kimberleytrachia somniator F. Köhler, 2011
Satsuma sooi H. Minato, 1982
Satsuma sororcula H.A. Pilsbry, 1902
Megalacron spadicea (H.C. Fulton, 1902)
Megalacron spadicea dunkeri (C.E. Lischke, 1912)
Cristilabrum spectaculum G.A. Solem, 1985