Papuina spectrum (L.A. Reeve, 1854)
Satsuma sphaeroconus (L. Pfeiffer, 1865)
Amplirhagada sphaeroidea F. Köhler, 2010
Xanthomelon spheroidea (E.J. Le Guillou, 1845)
Satsuma sphinctostoma A. Adams, 1868
Damochlora spina G.A. Solem, 1985
Mussonena spinei (J.C. Cox, 1868)
Planispira spinosissima C.G. Semper
Papuina splendescens J.C. Cox, 1865
Moellendorffia spurca (A.R.J.B. Bavay& P. Dautzenberg, 1899)
Baccalena squamulosa (R. Tate, 1894)
Amphidromus sriabbasae Thach, 2017
Molema stankowskii F. Köhler, 2011
Satsuma stearnsi H.A. Pilsbry
Sphaerospira stephansoniana (J.W. Brazier, 1879)
Papuina steursiana (L. Pfeiffer, 1853)
Papuina steursiana concolor (E.A. Smith, 1897)
Amphidromus stevehubrechti N.N. Thach & J. Abbas,2017
Crikey steveirwini J. Stanisic, 2009
Amphidromus stevenliei Parsons, 2016
Torresitrachia stipata (T. Iredale, 1938)
Chloritis stirophora (E.A. Smith, 1895)
Isomeria stoltzmanni (W. . Lubomirski, 1879)
Amplirhagada storriana F. Köhler, 2011
Rhynchotrochus strabo (J.W. Brazier, 1876)
Rhynchotrochus strabo dampierensis H.C. Fulton, 1920
Ganesella straminea (O.F. von Möllendorff,1901)
Trachiopsis strangulata (J.B. Hombron& C.H. Jacquinot, 1841)
Semotrachia strangwayana G.A. Solem, 1993
Galadistes stutchburyi (L. Pfeiffer, 1857)
Isomeria subcastanea (L. Pfeiffer, 1842)
Chloritis subcorpulenta (E.A. Smith, 1891)
Papuina subcostata H.C. Fulton, 1916
Ganesella subflava (H.H. Godwin-Austen,1891)
Sinumelon subfodinale T. Iredale, 1938