Euthria taeniopsoides K. Fraussen & C.M.L. Afonso,2008
Latisipho tahwitanus (W.H. Dall, 1918)
Austrofusus taitae (FOSSIL) (J. Marwick, 1924 †)
Buccinum takagawai T. Habe & K. Itô, 1972
Penion takapauensis (FOSSIL) (C.A. Fleming, 1943 †)
Sulcosinus taphrius (W.H. Dall, 1891)
Calagrassor tashiensis (Y.C. Lee & T.C. Lan,2002)
Cominella tasmanica J.E. Tenison-Woods, 1876
Drepanodontus tatyanae M.G. Harasewych& Y.I. Kantor, 2004
Chauvetia tenebrosa P.G. Oliver & E. Rolán,2008
Buccinum tenellum W.H. Dall, 1883
Probuccinum tenerum (E.A. Smith, 1907)
Fax tenuicostata (J.E. Tenison-Woods,1877)
Metula tenuilirata (FOSSIL) A.E.M. Cossmann, 1897 †
Pararetifusus tenuis (T.A. Okutani, 1966)
Chauvetia tenuisculpta (P. Dautzenberg, 1891)
Buccinum tenuissimum J.T. Kuroda in A. Teramachi,1933
Buccinum tenuisulcatum A.N. Golikov & V.V. Gulbin,1977
Buccinum terebriforme T. Habe & K. Itô, 1980
Colus terraenovae P. Bouchet & A. Warén,1985
Manaria terryni Fraussen & Stahlschmidt,2016
Siphonalia tessaria (FOSSIL) A.A. Olsson, 1931 †
Monostiolum tessellatum (L.A. Reeve, 1844)
Cominella testudinea (J.G. Bruguière, 1789)
Neptunea testudinis W.H. Dall, 1890
Buccinulum tetleyi (FOSSIL) Powell & J.A. Bartrum,1929 †
Metula thachi K. Fraussen & Y.F. Huang,2011
Caducifer thaleia H.A. Pilsbry & H.N. Lowe,1932
Buccinum thermophilum M.G. Harasewych& Y.I. Kantor, 2002
Chlanificula thielei A.W.B. Powell, 1958
Antarctodomus thielei (A.W.B. Powell, 1958)
Kryptos tholoides (R.B. Watson, 1882)
Monostiolum thomasi (FOSSIL) A.A. Olsson, 1967 †
Aeneator thomsoni (FOSSIL) (J. Marwick, 1924 †)
Manaria thorybopus (P. Bouchet & A. Warén,1986)