Mangelia sextoni (FOSSIL) J. Gardner, 1937 †
Eucithara seychellarum (E.A. Smith, 1884)
Bela seyithasanensis (FOSSIL) B.M. Landau & al., 2013 †
Mangelia shepstonensis E.A. Smith, 1914
Heterocithara sibogae T. Shuto, 1970
Mangelia sicula L.A. Reeve, 1846
Pseudorhaphitoma sienna R.N. Kilburn, 1993
Obesotoma simplex (A.T. von Middendorff,1849)
Bela simplicata É.A.A. Locard, 1896
Paraspirotropis simplicissima (W.H. Dall, 1907)
Neoguraleus sinclairi (T.B. Gillies, 1882)
Propebela siogamaensis (S. Nomura & N. Zinbo,1940)
Propebela smithi P. Bartsch, 1944
Eucithara solida (L.A. Reeve, 1846)
Obesotoma solida (W.H. Dall, 1887)
Mangelia sordida (L.A. Reeve, 1845)
Sorgenfreispira sorgenfreii (FOSSIL) (Nordsieck, 1972 †)
Eucithara souverbiei (G.W. Tryon, 1884)
Mangelia sparsa (FOSSIL) (O. Böttger, 1901 †)
Propebela spitzbergensis (H.B.S. Friele, 1886)
Obesotoma starobogatovi I.P. Bogdanov, 1990
Brachycythara stegeri G.W. Nowell-Usticke, 1959
Agathotoma stellata (O.A.L. Mörch, 1860)
Stellatoma stellata (R.E.C. Stearns, 1872)
Antiguraleus stellatomoides T. Shuto, 1983
Kurtziella stenotella (FOSSIL) W.P. Woodring, 1970 †
Kurtziella stephanophora (FOSSIL) J. Gardner, 1937 †
Mangelia stibarochila J.C. Melvill & R. Standen,1896
Pseudorhaphitoma stipendiarii R.N. Kilburn, 1993
Mangelia stosiciana (Š. Brusina, 1869)
Cythara striata H.C.F. Schumacher, 1817
Eucithara striatella (E.A. Smith, 1884)
Eucithara striatissima (G.B. III Sowerby, 1907)
Oenopota striatula (K.H.J. Thiele, 1912)
Eucithara strigata (W.H. Pease, 1863)