Tortaxis servaini (J.F. Mabille, 1887)
Opeas setchuanense (P.M. Heude, 1885)
Glessula shiplayi (L. Pfeiffer)
Obeliscus silvaevagus W.K. Weyrauch, 1964
Glessula simoni (F.P. Jousseaume, 1894)
Synopeas simonis F.P. Jousseaume, 1889
Leptinaria simplex (R.J.L. Guppy, 1868)
Stenogyra simpsoni H.A. Pilsbry, 1906
Lamellaxis simpsoni (C.M.F. Ancey, 1886)
Glessula sinhila H.B. Preston, 1909
Beckianum sinistrum (E.C. Von Martens, 1898)
Curvella sinulabris (E.C. Von Martens, 1878.)
Pseudoglessula sjostedti (A. d'Aillyin H.A. Pilsbry, 1885)
Riebeckia sokotorana (E.C. Von Martens, 1881)
Leptinaria solida E.C. Von Martens, 1898
Nothapalus sororcula H.A. Pilsbry, 1919
Opeas soulaianus E. Fischer-Piette& A.M. Testud, 1973
Homorus sowerbyanus (P.M.A. Morelet)
Obeliscus spiralis H. von Maltzan
Ischnoglessula splendida (J. Germain, 1915)
Leptinaria stolli E.C. Von Martens, 1898
Lamellaxis strebelianus (H.A. Pilsbry, 1907)
Subulina striatella (P.C.A.S.L. Rang, 1831)
Opeas striatissimus (P.V. Gredler, 1882)
Obeliscus strictus (F. Poey, 1853)
Pseudoglessula strigosa (P.M.A. Morelet, 1866)
Lamellaxis striosus (C.B. Adams, 1849)
Kempioconcha stuhlmanni (E.C. Von Martens, 1892)
Pseudoglessula subcarinifera (E.A. Smith, 1890)
Subulina subcrenata E.C. Von Martens, 1895
Pseudoglessula subfuscidula H.A. Pilsbry, 1919
Kempioconcha subolivacea (E.A. Smith, 1890)
Dysopeas subopacum (F.C. Baker, 1927)
Glessula subperrotteti R.H. Beddome
Chilonopsis subplicatus (G.B. Sowerby, 1844)