Strioterebrum swainsoni (G.P. Deshayes, 1859)
Oxymeris swinneni Y. Terryn & P. Ryall,2014
Terebra swobodai T. Bratcher, 1981
Zeacuminia tahuia (FOSSIL) Finlay, 1930 †
Terebra taiwanensis U. Aubry, 1999
Euterebra tantilla (E.A. Smith, 1873)
Terebra tantula (FOSSIL) T.A. Conrad, 1848 †
Zeacuminia tantula (FOSSIL) J. Marwick, 1931 †
Terebra taurina (J. Lightfoot, 1786)
Euterebra taylori (L.A. Reeve, 1860)
Hastula tenera (R.B. Hinds, 1844)
Terebra tensioni (FOSSIL) (Finlay, 1927 †)
Hastula tenuicolorata L. Bozzetti, 2008
Duplicaria teramachii R.D. Burch, 1965
Fusoterebra terebrina (FOSSIL) G. Bonelli †
Fusoterebra terebrina pseudonodulosa (FOSSIL) F. Sacco †
Terebra tessellata J.E. Gray, 1834
Terebra texagyra (FOSSIL) G.F. Harris †
Terebra textilis R.B. Hinds, 1844
Terebra textilis hizenensis H.A. Pilsbry, 1904
Terebra textilis souleyeti G.P. Deshayes, 1859
Duplicaria theobaldi (FOSSIL) E.W. Vredenburg, 1921 †
Terebra tiarella G.P. Deshayes, 1857
Hastula tiedemani R.D. Burch, 1965
Duplicaria timida (FOSSIL) (J. Marwick, 1931 †)
Terebra tipperi (FOSSIL) E.W. Vredenburg, 1921 †
Hastula tittabweensis (FOSSIL) E.W. Vredenburg, 1921 †
Duplicaria tiurensis (M.M. Schepman, 1913)
Terebra tjidamarensis K. Martin, 1879
Hastula transitorsa (FOSSIL) J. Marwick, 1929 †
Terebra travancorensis (FOSSIL) A. Dey, 1961 †
Granuliterebra tricincta (E.A. Smith, 1877)
Terebra tricolor G.B. I Sowerby, 1825
Impages trilineata L. Bozzetti, 2008
Triplostephanus triseriatus (J.E. Gray, 1834)