Anoma solida (C.B. Adams, 1851) Jamaica
Cochlodinella soluta (L. Pfeiffer, 1863) Cuba
Torrecoptis sororcula C. de la Torre& P. Bartsch, 1972 Cuba
Poeycoptis sosai C. de la Torre& P. Bartsch, 1972 Cuba
Tomelasmus souvallei (J. Gundlach, 1856)
Arangia sowerbyana (L. Pfeiffer, 1846) Cuba
Tetrentodon sparsicostata C. de la Torre& P. Bartsch, 1972 Cuba
Torrecoptis spatiata C. de la Torre& P. Bartsch, 1972 Cuba15,57 mm
Gongylostoma spatiosa C. de la Torre& P. Bartsch, 1972 Cuba
Resupinata speciosum (R.W. Dunker, 1844) Veracruz, Mexico
Brachypodella speluncae (P.M.A. Morelet, 1852) Guatemala
Torrecoptis spirifer (H.A. Pilsbry, 1930) Cuba
Anoma splendens (K.T. Menke, 1841) Jamaica
Oligostylus splendidum (L. Pfeiffer, 1860) Oaxaca, Mexico
Dissotropis stearnsi (P. Bartsch, 1906) Mexico, Mazatlan
Coelocentrum stenocion F.G. Thompson, 1968 Mexico, Acapulco42,6 mm
Holospira stenopylis H.A. Pilsbry, 1953 Mexico, San Luis Potosì
Autocoptis stibe F.G. Thompson& C.J. Franz, 1976
Pycnoptychia strangulata (F. Poey, 1856) Cuba16 mm
Trachycion strebeli (G.J. Pfeffer, 1887) Oaxaca, Mexico
Anoma striata (C.B. Adams, 1851) Jamaica
Pycnoptychia striatella (B.H. Wright in L. Pfeiffer, 1864) Cuba
Ventricochis striatissima C. de la Torre& P. Bartsch, 1972 Cuba
Torrecoptis stricta (C. de la Torre, 1912) Cuba
Gongylostomella strigis C. de la Torre& P. Bartsch, 1972 Cuba
Tetrentodon striosa C. de la Torre& P. Bartsch, 1972 Cuba
Macroceramus subcylindricus H.A. Pilsbry Dominican Republic
Gongylostoma subelegans H.A. Pilsbry, 1904 Cuba11 mm
Heterocoptis sublapidea C. de la Torre& P. Bartsch, 1972 Cuba
Microceramus sublatus H.A. Pilsbry& C. de la Torre, 1929 Cuba8 mm
Brachypodella subtilis (P.M.A. Morelet, 1849) Guatemala
Brachypodella subula (A.E.J. Férussac, 1821) Venezuela12 mm
Eucalodium sumichrasti J.C.H. Crosse& P.H. Fischer, 1878 Mexico, Tehuantepec
Microceramus swifti (T.B. Bland, 1874)
Heterocoptis tabacaria C. de la Torre& P. Bartsch, 1972 Cuba