Fusinus timessus (W.H. Dall, 1889) Florida128 mm
Latirus timorensis (FOSSIL) Martin, 1884 †
Hercorhyncus tippanus (FOSSIL) (T.A. Conrad, 1860 †) USA, Alabama, Pike
Clavilithes tjaringinensis (FOSSIL) Martin, 1895 †
Clavilithes tjidamarensis (FOSSIL) (K. Martin, 1879 †) Indonesia, Junghuhn
Fusus torosus (FOSSIL) A.E. Ortmann, 1902 † Argentina, Monte Leon
Pseudolatirus tortilis (FOSSIL) (R.P. Whitfield, 1865 †) Trinidad and Tobago, Siparia
Fusinus townsendi (J.C. Melvill, 1899) Kuwait64,9 mm
Fusus trachys (FOSSIL) Seeley † UK, England, East Sussex
Microcolus transenna (FOSSIL) (J.E. Tenison-Woods,1876 †) Tasmania
Fusinus transkeiensis R. Hadorn, 2000 South Africa, Transkei20 mm
Pleuroploca trapezium (C. Linnaeus, 1758) Okinawa144,2 mm
Fusus tricostatus (FOSSIL) Seeley † UK, Cambridgeshire
Leucozonia trinidadensis G.J. Vermeij, 1997 Trinidad and Tobago62 mm
Leucozonia triserialis (J.B.P.A. Lamarck, 1822) Cape Verde38 mm
Leucozonia triserialis hidalgoi J.C.H. Crosse, 1865 Cape Verde45 mm
Fasciolaria tritonina (FOSSIL) (J.P.S. Grateloup,1840 †) France, Aquitaine
Latirus troscheli C.H.W.T. Löbbecke, 1882
Leucozonia tuberculata (W.J. Broderip, 1833) Galapagos21 mm
Fulgur tuberculatum (FOSSIL) T.A. Conrad, 1840 †
Fusinus tuberculatus (J.B.P.A. Lamarck, 1822) Madagascar, Tulear120 mm
Fusinus tuberculatus fuscobandatus L. Bozzetti, 2017 Madagascar, Tulear95 mm
Fusinus tuberculatus priscai L. Bozzetti, 2013 Madagascar, Tulear
Fusinus tuberosus (L.A. Reeve, 1847) Japan, Wakayama100 mm
Fasciolaria tulipa (C. Linnaeus, 1758) Florida Keys149,3 mm
Peristernia tulipa (R.P. Lesson, 1841) Mexico, Acapulco20,3 mm
Latirus tumbeziensis (FOSSIL) A.A. Olsson, 1932 † Venezuela, Paraguana Peninsula52 mm
Polygona tumens (P.P. Carpenter, 1856) Pacific Panama56 mm
Latirolagena tumida (FOSSIL) (R. Tate, 1888 †) Australia, Victoria, S. Grampians Bal
Pleuroploca turamensis (FOSSIL) P.O. Jung, 1969 † Trinidad and Tobago, Sangre Grande
Fusinus turris (A. Valenciennes, 1832) Mexico
Turrilatirus turritus (J.F. Gmelin, 1791) Philippines, Bohol Island65 mm
Woodsella typica (FOSSIL) B. Wade, 1926 † Tennessee, McNairy County
Fascinus typicus C. Hedley, 1903 Australia, Sydney7 mm
Fusinus undatus (J.F. Gmelin, 1791) Philippines, Masbate Island178 mm