Fusinus timessus (W.H. Dall, 1889)
Latirus timorensis (FOSSIL) Martin, 1884 †
Hercorhyncus tippanus (FOSSIL) (T.A. Conrad, 1860 †)
Clavilithes tjaringinensis (FOSSIL) Martin, 1895 †
Clavilithes tjidamarensis (FOSSIL) (K. Martin, 1879 †)
Fusus torosus (FOSSIL) A.E. Ortmann, 1902 †
Pseudolatirus tortilis (FOSSIL) (R.P. Whitfield, 1865 †)
Fusinus townsendi (J.C. Melvill, 1899)
Fusus trachys (FOSSIL) Seeley †
Microcolus transenna (FOSSIL) (J.E. Tenison-Woods,1876 †)
Fusinus transkeiensis R. Hadorn, 2000
Pleuroploca trapezium (C. Linnaeus, 1758)
Fusus tricostatus (FOSSIL) Seeley †
Leucozonia trinidadensis G.J. Vermeij, 1997
Leucozonia triserialis (J.B.P.A. Lamarck, 1822)
Leucozonia triserialis hidalgoi J.C.H. Crosse, 1865
Fasciolaria tritonina (FOSSIL) (J.P.S. Grateloup,1840 †)
Latirus troscheli C.H.W.T. Löbbecke, 1882
Leucozonia tuberculata (W.J. Broderip, 1833)
Fulgur tuberculatum (FOSSIL) T.A. Conrad, 1840 †
Fusinus tuberculatus (J.B.P.A. Lamarck, 1822)
Fusinus tuberculatus fuscobandatus L. Bozzetti, 2017
Fusinus tuberculatus priscai L. Bozzetti, 2013
Fusinus tuberosus (L.A. Reeve, 1847)
Fasciolaria tulipa (C. Linnaeus, 1758)
Peristernia tulipa (R.P. Lesson, 1841)
Latirus tumbeziensis (FOSSIL) A.A. Olsson, 1932 †
Polygona tumens (P.P. Carpenter, 1856)
Latirolagena tumida (FOSSIL) (R. Tate, 1888 †)
Pleuroploca turamensis (FOSSIL) P.O. Jung, 1969 †
Fusinus turris (A. Valenciennes, 1832)
Turrilatirus turritus (J.F. Gmelin, 1791)
Woodsella typica (FOSSIL) B. Wade, 1926 †
Fascinus typicus C. Hedley, 1903
Fusinus undatus (J.F. Gmelin, 1791)