Manzonia segadei E. Rolán, 1987
Rissoa seguenzorum (FOSSIL) Bertolaso & S. Palazzi,2000 †
Alvania seinensis S. Gofas, 2007
Onoba semicarinatus (L. de Folin, 1873)
Onoba semicostata (G. Montagu, 1803)
Onoba semicostata striata (J. Adams, 1797)
Rissoa semilaevis (FOSSIL) A. von Koenen, 1892 †
Pseudosetia semipellucida (H.B.S. Friele, 1879)
Pusillina semireticulata (R. Murdoch & H.H. Suter,1906)
Porosalvania semisculpta S. Gofas, 2007
Crisilla semistriata (G. Montagu, 1808)
Galeodinopsis semperi (FOSSIL) (Wiechmann, 1871 †)
Crisilla senegalensis E. Rolán & J.M. Hernández,2006
Plagyostila senegalensis E. Rolán & J. Pelorce,2002
Alvania settepassii B. Amati & I. Nofroni,1985
Rissoa similis A. Scacchi, 1836
Rissoa similis decurtata (T.A. de M. Monterosato,1884)
Rissoa similis rubrocincta F. Danilo & G.B. Sandri,1866
Powellisetia simillima (W.L. May, 1915)
Alvania simonsi (FOSSIL) R. Marquet, 1997 †
Onoba simplex (A.W.B. Powell, 1927)
Onoba simplicula T.A. de M. Monterosato,1890
Alvania simulans É.A.A. Locard, 1886
Cingula simulans (E.A. Smith, 1890)
Pusillina sinuastoma (W.F. Ponder, 1967)
Alvania sismonsi (FOSSIL) R. Marquet, 1997 †
Frigidoalvania sitta (M. Yokoyama, 1926)
Alvania sleursi (B. Amati, 1987)
Alvania slieringsi H.J. Hoenselaar & J. Goud,1998
Setia slikorum (A. Verduin, 1984)
Rissoa sobieskii (FOSSIL) Friedberg, 1923 †
Mohrensternia soceni (FOSSIL) E. Jekelius, 1944 †
Haurakia sodalis (FOSSIL) C.R. Laws, 1939 †
Alvania solida (C.B. Adams, 1850)
Porosalvania solidula S. Gofas, 2007