Conus shimajiriensis (FOSSIL) F.S. MacNeil, 1960 †
Conus sieboldianus (FOSSIL) J. Makiyama, 1927 †
Conasprella sieboldii (L.A. Reeve, 1848)
Conus sierrai (FOSSIL) Engerrand & Urbina,1910 †
Africonus silviae T. Cossignani, 2014
Conus simoensis (FOSSIL) Martin, 1906 †
Conasprella simonei (E.J. Petuch & B.W. Myers,2014)
Conus simplicissimus (FOSSIL) Pilsbry & Johnson, 1917 †
Conus sinaiensis (E.J. Petuch& D.P. Berschauer, 2016)
Conus sindangbaranensis (FOSSIL) Martin, 1906 †
Gradiconus skoglundae M.J. Tenorio, J.K. Tucker& A. Chaney, 2012
Profundiconus smirna (P. Bartsch & H.A. Rehder,1943)
Profundiconus smirnoides M.J. Tenorio, 2015
Conus smithvillensis (FOSSIL) G.F. Harris, 1895 †
Conus smoesi (E.J. Petuch& D.P. Berschauer, 2016)
Conus socialis (FOSSIL) Martin, 1895 †
Phasmoconus sogodensis G.T. Poppe, E. Monnier& S.P. Tagaro, 2012
Textilia solangeae L. Bozzetti, 2004
Textilia solangeae flammata L. Bozzetti, 2010
Phasmoconus solomonensis (A. Delsaerdt, 1992)
Conasprella somalica (L. Bozzetti, 2013)
Conus sondeianus (FOSSIL) Martin, 1895 †
Graphiconus spectrum (C. Linnaeus, 1758)
Conus spenceri (FOSSIL) Ward, 1992 †
Conus spengleri (FOSSIL) E.J. Petuch, 1991 †
Purpuriconus sphacelatus (G.B. I Sowerby, 1833)
Virgiconus spiceri (P. Bartsch & H.A. Rehder,1943)
Endemoconus spirofilis (T. Habe & S. Kosuge,1970)
Strategoconus splendidulus (G.B. I Sowerby, 1833)
Leptoconus spolongensis (FOSSIL) Martin, 1916 †
Chelyconus spongiopictus (FOSSIL) Sacco, 1893 †
Harmoniconus sponsalis (C.H. Hwassin J.G. Bruguière, 1792)
Conus springvaleensis (FOSSIL) W.C. Mansfield, 1925 †
Lindaconus spurius (J.F. Gmelin, 1791)
Lindaconus spurius aureofasciatus H.A. Rehder & Abbott,1951