Coralliophila sofiae (A. Aradas & L. Benoit,1876)
Coralliophila sokkohensis (FOSSIL) (K. Martin, 1916 †)
Chicoreus solangeae (L. Bozzetti, 2014)
Lataxiena solenosteiroides R. Houart, K. Fraussen& J.P. Barbier, 2013
Nassa solida (FOSSIL) Harmer ex S.V. Wood MS †
Siphonochelus solus P. Vella, 1961
Coralliophila solutistoma J.T. Kuroda& T. Shikama in T. Shikama, 1966
Murex somalicus M. Parth, 1990
Naquetia sondeiana (FOSSIL) (K. Martin, 1895 †)
Acanthotrophon sorenseni (L.G. Hertlein& A.M. Strong, 1951)
Ocenebra sowerbyi (FOSSIL) (O.G. Michelotti,1841 †)
Abyssotrophon soyoae (T.A. Okutani, 1959)
Trophonopsis sparacioi C. Smriglio, P. Mariottini& A. Di Giulio, 2015
Phyllocoma speciosa (G.F. Angas, 1871)
Phyllocoma speciosa eburnea (W.F. Petterd, 1884)
Ricinella speciosa (R.W. Dunker, 1867)
Vasula speciosa (A. Valenciennes, 1832)
Murex spectabilis W.F. Ponder & E.H. Vokes,1988
Pazinotus spectabilis R. Houart, 1991
Chicoreus spectrum (L.A. Reeve, 1846)
Urosalpinx sperata (A.E.M. Cossmann, 1921)
Murex spicatus W.F. Ponder & E.H. Vokes,1988
Murexsul spiculus (R. Houart, 1987)
Leptotrophon spinacutus (R. Houart, 1986)
Babelomurex spinaerosae (T. Shikama, 1970)
Murex spinastreptos R. Houart, 2010
Promurex spinicosta (FOSSIL) (H.G. Bronn, 1831 †)
Siphonochelus spinirectus (FOSSIL) E.H. Vokes, 1989 †
Morula spinosa (H. Adams & A. Adams,1853)
Babelomurex spinosus (Y. Hirase, 1908)
Dermomurex spinosus Garrigues & Lamy, 2017
Conchatalos spinula R. Houart & V. Héros,2008
Flexopteron spinulosa (FOSSIL) (G.P. Deshayes, 1865 †)
Acanthinucella spirata (H.M.D. de Blainville,1832)
Siratus springeri (H.R. Bullis, 1964)