Trivirostra spioinsula C.N. Cate, 1979
Erato spiralis P. Doderlein 1862
Triviella splendidissima (J.R. le B. Tomlin& F.A. Schilder, 1934)
Trivia spongicola T.A. de M. Monterosato,1923
Proterato stalagmia C.N. Cate, 1975
Trivellona suavis (F.A. Schilder, 1931)
Erato subalata (FOSSIL) F. Sacco, 1894 †
Erato subcypraeola (FOSSIL) A.V.M.D. D'Orbigny,1852 †
Erato subcypraeola (FOSSIL) (Orbigny, 1852 †)
Lachryma submorosa (FOSSIL) C.R. Laws, 1935 †
Pusula subpediculus (FOSSIL) (F. Sacco, 1894 †)
Pusula subpediculus (A.V.M.D. D'Orbigny,1852)
Trivellona suduirauti (F.Jr. Lorenz, 1996)
Niveria suffusa (J.E. Gray, 1827)
Eratoena sulcifera (J.E. Grayin G.B. I Sowerby, 1832)
Trivellona syzygia L. Dolin, 2001
Novatrivia taiwanica D. Fehse, 2015
Gregoia tenera D. Fehse, 2015
Bellerato tenuilabrum (FOSSIL) (C.R. Laws, 1935 †)
Eratoena tenuirugosa (FOSSIL) C. Beets, 1984 †
Niveria testudinella (FOSSIL) (W.J. Broderip 1837 †)
Trivirostra thaanumi C.N. Cate, 1979
Dolichupis tindigei D. Fehse & J. Grego, 2010
Proterato tomlini F.A. Schilder, 1933
Gregoia tonga Fehse, 2017
Trivia tortuga C.N. Cate, 1979
Trivia tremeza (P.L. Duclos, 1833)
Trivirostra triticum F.A. Schilder, 1932
Trivirostra tryphaenae D. Fehse, 1998
Semitrivia tsuchidai D. Fehse, 2002
Trivirostra turneri F.A. Schilder, 1932
Gregoia umera Fehse, 2017
Trivellona valerieae (M.R. Hart, 1996)
Trivia vaughani (FOSSIL) Gardner, 1947 †
Trivirostra vayssierei C.N. Cate, 1979