Burnupena rotunda L.R. Dempster & G.M. Branch,1999
Ameranna royalensis (G.T. Watters, 2009)
Bailya roycei (FOSSIL) (M. Smith, 1938 †)
Pollia rubens (H.C. Küster, 1858)
Pollia rubiginosa (L.A. Reeve, 1846)
Proneptunea rufa P.G. Oliver & G.B. Picken,1984
Kelletia rugosa (FOSSIL) A.A. Olsson, 1964 †
Neptunea rugosa A.N. Golikov, 1962
Colus rushii (W.H. Dall, 1889)
Engina ryalli E. Rolán & F. Fernandes,1995
Colus sabini (J.E. Gray, 1824)
Pisania sacyi (FOSSIL) A.E.M. Cossmann& M.A. Peyrot, 1923 †
Buccinum sagamianum T.A. Okutani, 1977
Euthriostoma saharicum (É.A.A. Locard, 1897)
Euthriostoma saharicum apodema P. Bouchet & F.F. Talavera,1981
Euthriostoma saharicum gliberti I. Marche-Marchad& P. Brebion, 1977
Buccinum sakhalinense W.H. Dall, 1907
Habevolutopsius sakhalinensis Y.I. Kantor, 1985
Cantharus salalahensis T. Cossignani, 2017
Bailya sanctorum G.T. Watters, 2009
Accidenticulabrum sangiranensis (FOSSIL) (Martin, 1906 †)
Gemophos sanguinolentus (P.L. Duclos, 1833)
Solenosteira santaerosae (FOSSIL) Anderson, 1929 †
Metula santoensis (FOSSIL) H.S. Ladd, 1976 †
Pararetifusus sapius (W.H. Dall, 1919)
Solenosteira sarasotaensis (FOSSIL) E.J. Petuch, 1994 †
Ancistrolepis sasakii (T. Habe & K. Itô, 1970)
Euthria saucatsensis (FOSSIL) É.A. Benoist, 1874 †
Habevolutopsius savilovi Y.I. Kantor, 1985
Pollia scabra É.A.A. Locard, 1892
Pollia scacchiana (R.A. Philippi, 1844)
Buccinum scalariforme H.P.C. Møller, 1842
Siphonalia scalariformis (P. Nyst, 1843 )
Clea scalarina (G.P. Deshayes, 1876)
Lyrofusus scalarina (FOSSIL) (J.B.P.A. Lamarck,1803 †)