Murex torturosus (FOSSIL) Sowerby, 1823 †
Ocenebra torulosa (FOSSIL) (J.P.S. Grateloup,1840 †)
Monstrotyphis tosaensis (M. Azuma, 1960)
Cronia tosana (H.A. Pilsbry, 1904)
Babelomurex tosanus (Y. Hirase, 1908)
Trachypollia trachea (FOSSIL) (J. Gardner, 1944 †)
Laevityphis transcurrens (E.C. Von Martens, 1902)
Pteropurpura transkeiana R. Houart, 1991
Vaughtia transkeiensis (R. Houart, 1987)
Murex trapa P.F. Röding, 1798
Axymene traversi (F.W. Hutton, 1873)
Trophon triacanthus Z.J.A. De Castellanos, E. Rolán& S. Bartolotta, 1987
Pteropurpura trialata (G.B. II Sowerby, 1834)
Pteropurpura trialata alba S.S. Berry, 1912
Vitularia triangularis L. Bozzetti, 2009
Acanthina triangularis (FOSSIL) DeVries, 2003 †
Acanthais triangularis (H.M.D. de Blainville,1832)
Tripterotyphis triangularis (Adams, 1855)
Boreotrophon triangulatus (P.P. Carpenter, 1864)
Murex tribulus C. Linnaeus, 1758
Pteropurpura tricarinata (FOSSIL) (J.B.P.A. Lamarck,1803 †)
Pseudoperissolax tricarnatus (FOSSIL) (C.S. Weaver, 1905 †)
Dermomurex triclotae (R. Houart, 2001)
Thais tricolorata L. Bozzetti, 2010
Vokesimurex tricoronis (S.S. Berry, 1960)
Ecphora tricostata (FOSSIL) Martin, 1904 †
Ecphora tricostata (FOSSIL) Ward, 1992 †
Ocenebra tridentatus (FOSSIL) R. Tate, 1888 †
Murex trifascialis (FOSSIL) J.P.S. Grateloup, 1840 †
Pterochelus triformis (L.A. Reeve, 1845)
Coralliophila trigoi P. Mariottini, C. Smriglio& E. Rolán, 2005
Chicoreus trigonalis (FOSSIL) Gábor, 1936 †
Murex trigonus (FOSSIL) M. Rouault, 1849 †
Murex trinchinopolitensis E. Forbes, 1846
Murex trinodosus (FOSSIL) R. Tate, 1888 †