Microceramus sanctispiritensis H.A. Pilsbry, 1913
Urocoptis sanguinea L. Pfeiffer, 1845
Tetrentodon santacruzensis C. de la Torre & P. Bartsch,1972
Tetrentodon sardae C. de la Torre & P. Bartsch,1972
Tomelasmus sauvalleanus (J. Gundlach, 1856)
Urocoptis sauvelleana (J. Gundlach, 1856)
Liocallonia saxosa (F. Poey, 1857)
Idiostemma scabrosa (J. Gundlachin L. Pfeiffer, 1859)
Goniapex scabrum F.G. Thompson& E.L. Mihalcik, 2011
Pycnoptychia scaeva (J. Gundlachin L. Pfeiffer, 1863)
Tetrentodon scalarina C. de la Torre & P. Bartsch,1972
Coelostemma scaphopleuron F.G. Thompson, 1988
Sagracoptis scholappi C. de la Torre & P. Bartsch,1972
Arangia scobinata (C. de la Torre& H.F. Ramsden, 1915)
Holospira scololaema F.G. Thompson& E.L. Mihalcik, 2005
Orienticoptis sculpturata (H.A. Pilsbry, 1929)
Tomelasmus semicoloratus (G.C. Spence, 1936)
Gongylostomella semicostata C. de la Torre & P. Bartsch,1972
Brachypodella seminuda C.B. Adams, 1845
Haplocion semisculpta (R.E.C. Stearns, 1890)
Tetrentodon semistriata C.G. Aguayo, 1932
Torrecoptis semistriata C. de la Torre & P. Bartsch,1972
Torrecoptis serrana C. de la Torre & P. Bartsch,1972
Tetrentodon sexdecimalis (Jimeno in L. Pfeiffer,1863)
Holospira sherbrookei L.H. Gilbertson, 1989
Pycnoptychia shuttleworthiana (F. Poey, 1856)
Macroceramus siboneyensis C. de la Torre & P. Bartsch,1972
Torrecoptis sifontesi C. de la Torre & P. Bartsch,1972
Microceramus signatus (L. Guilding, 1828)
Microceramus signatus salleanus H.A. Pilsbry, 1903
Spirostemma simile (C.B. Adams, 1849)
Microceramus simplex (L. Pfeiffer, 1863)
Pfeiffericoptis sinistra C. de la Torre & P. Bartsch,1972
Anoma sinuata (C.B. Adams, 1851)
Brachypodella smithiuanum L. Pfeiffer, 1866