Alcithoe solida (FOSSIL) J. Marwick, 1926 †
Saotomea solida (P. Bail & M. Chino,2000)
Scaphellopsis solitaria (FOSSIL) (T.A. Conrad, 1830 †)
Cymbiola sophiae J.E. Gray, 1846
Athleta soriensis (FOSSIL) F.E. Eames, 1952 †
Lyrischapa soudanense (FOSSIL) (J.H.F. Douvillé †)
Cymbium souliei I. Marche-Marchad, 1974
Ericusa sowerbyi (L.C. Kiener, 1839)
Ericusa sowerbyi pellita (FOSSIL) (Johnston, 1880 †)
Ericusa sowerbyi perspecta T. Iredale, 1929
Ericusa sowerbyi porcellana B.D. Jackson, 1954
Tractolira sparta W.H. Dall, 1896
Spinomelon speighti (FOSSIL) J. Marwick, 1926 †
Livonia spenceri (FOSSIL) (G.B. Pritchard, 1896 †)
Amoria spenceriana (J.H. Gatliff, 1908)
Liopeplum spiculatum (FOSSIL) N.F. Sohl, 1964 †
Lyrischapa spinifera (FOSSIL) Perrilliat & al., 2006 †
Volutospina spinosa (FOSSIL) (C. Linnaeus, 1758 †)
Arctomelon stearnsii (W.H. Dall, 1872)
Athleta stenzeli (FOSSIL) Plummer †
Livonia stephensi (FOSSIL) Johnston, 1879 †
Nannamoria stolida (FOSSIL) (Johnston, 1880 †)
Fulgoraria striata (FOSSIL) (M. Yokoyama, 1924 †)
Teremelon striata (FOSSIL) (C.R. Laws, 1935 †)
Amoria stricklandi P. Bail & A. Limpus, 2016
Athleta strombiformis (FOSSIL) (G.P. Deshayes, 1835 †)
Scaphella stromboidella (FOSSIL) Kellum, 1926 †
Mauithoe strongi (FOSSIL) (J. Marwick, 1931 †)
Cymbiolacca strophodon (FOSSIL) (F. McCoy, 1876 †)
Athleta studeri (E.C. Von Martens, 1897)
Volutospina subambigua (FOSSIL) (A.V.M.D. D'Orbigny,1852 †)
Athleta subambiguus (FOSSIL) (K. Martin, 1914 †)
Caricella subangulata (FOSSIL) T.A. Conrad, 1854 †
Athleta subelegans (FOSSIL) (A.V.M.D. D'Orbigny,1852 †)
Cymbiola subelongata P. Bail & A. Limpus, 1998