Alycaeus somnueki S. Panha & S. Patamakanthin,1999
Alycaeus somwangi P. Dumrongrojwattana& W.J.M. Maassen, 2008
Cyclophorus songmaensis P.M.A. Morelet, 1891
Boucardicus soniae K.C. Emberton, 2009
Platyrhaphe sordida (L. Pfeiffer, 1855)
Cyclophorus sowerbyi J.G. Hidalgo, 1890
Cyclophorus speciosus (R.A. Philippi, 1847)
Chamalycaeus specus (H.H. Godwin-Austen,1889)
Pterocyclus speleaotes (J.R. le B. Tomlin, 1931)
Aulopoma sphaeroideum W.L.H. Dohrn, 1857
Chamalycaeus spiracellum (A. Adams & L.A. Reeve,1860)
Leptopoma stainforthi (G.B. Sowerby, 1842)
Cyclophorus stenomphalus L. Pfeiffer, 1846
Theobaldius stenostoma (G.B. I Sowerby, 1843)
Theobaldius stenostoma anguis (S.C.T. Hanley& W. Theobald, 1875)
Cyclophorus stevenabbasorum Thach, 2016
Chamalycaeus stoliczai (H.H. Godwin-Austen,1874)
Chamalycaeus strangulatus (L. Pfeiffer, 1846)
Japonia striatula J.T. Kuroda, 1973
Rhiostoma strubelli O.F. von Möllendorff,1899
Chamalycaeus stylifer (W.H. Benson, 1857)
Leptopoma subalatum J.F. Quadras& O.F. von Möllendorff, 1893
Pterocyclus subalatus E.R. Sykes, 1903
Cyclophorus subcarinatus O.F. von Möllendorff,1882
Cyclotus subflammulatus L. Pfeiffer, 1861
Cyclophorus sublaevigatus W.T. Blanford, 1869
Platyrhaphe substriata (G.B. Sowerby, 1843)
Cyclotus succinctus E.C. Von Martens, 1864
Cyclotus suluanus E.A. Smith, 1890
Cyclotus sumatranus E.C. Von Martens, 1864
Platyrhaphe sunggangensis Y.C. Lee & W.L. Wu, 2001
Dioryx swinhoei A. Adams, 1866
Dioryx swinhoei depressus H.A. Pilsbry & Y. Hirase,1906
Cyclophorus szechwanensis T.C. Yen, 1939
Chamalycaeus tadai J.T. Kuroda & T. Kawamoto,1956