Pelseneeria secunda (A.W.B. Powell, 1940)
Melanella seguenzai (FOSSIL) S.I. Di Geronimo& R. La Perna, 1999 †
Eulima semitorta A. Adams, 1861
Hypermastus serratus A. Warén, 1991
Melanella seymourensis (FOSSIL) J.D. Stilwell & al.,2004 †
Sabinella shaskyi A. Warén, 1992
Balcis shibana (FOSSIL) (M. Yokoyama, 1927 †)
Annulobalcis shimazui T. Habe, 1965
Parvioris shoplandi (J.C. Melvill, 1898)
Melanella siberutensis (K.H.J. Thiele, 1925)
Pelseneeria sibogae (M.M. Schepman& H.F. Nierstrasz, 1909)
Melanella similior P. Bouchet & A. Warén,1986
Eulima similis K.H.J. Thiele, 1925
Eulima simplex G.B. III Sowerby, 1897
Heterospira simulatrix (FOSSIL) F. Haas, 1953 †
Melanella sinuosa (A. Scacchi, 1836)
Hemiliostraca sloani A. Warén, 1980
Niso smithi M.M. Schepman, 1909
Hemiliostraca sobrina (C.F. Laseron, 1955)
Melanella solida (G.B. II Sowerby, 1865)
Robillardia solida A. Warén, 1980
Melanella solidula (A. Adams & L.A. Reeve,1850)
Melanella soliduloides (T. Habe, 1951)
Eulima solitaria (C.B. Adams, 1852)
Melanella solitaria (E.A. Smith, 1915)
Peasistilifer solitaria (C.F. Laseron, 1955)
Fusceulima sordida (R.B. Watson, 1897)
Eulima sororcula R.B. Newton, 1891
Parvioris sowerbyi (K.H. Barnard, 1963)
Eulima sperata A. Adams, 1863
Tropiometricola sphaeroconcha (T. Habe, 1974)
Leiostraca spiculum (A. Adams, 1861)
Melanella spina (O. Böttger, 1893)
Melanella spina (FOSSIL) (J.P.S. Grateloup,1838 †)
Melanella spinosa W.R.B. Oliver, 1915