Fusimitra swainsoni (W.J. Broderip, 1836)
Fusimitra swainsoni zaca A.M. Strong, G.D. Hanna& L.G. Hertlein, 1933
Mitra syra (FOSSIL) W.H. Dall, 1915 †
Nebularia tabanula (J.B.P.A. Lamarck, 1811)
Nebularia tabanula pediculus (J.B.P.A. Lamarck, 1811)
Nebularia tabida M. Herrmann & R. Salisbury,2013
Mitra tagaroae G.T. Poppe, 2008
Subcancilla tahitiensis M. Herrmann & R. Salisbury,2012
Mitra taiwanbale Huang & Salisbury, 2017
Neocancilla takiisaoi (J.T. Kuroda, 1959)
Nebularia telescopium L.A. Reeve, 1844
Mitra tensa (FOSSIL) J.C. Melvill, 1888 †
Mitra tenuis (FOSSIL) L.M.D. Bellardi, 1887 †
Mitra terebellum (FOSSIL) J.B.P.A. Lamarck †
Mitra terryni G.T. Poppe, 2008
Nebularia testacea (W.J. Broderip, 1836)
Mitra thachi H. Turner, 2007
Charitodoron thalia J.R. le B. Tomlin, 1932
Nebularia ticaonica L.A. Reeve, 1844
Mitra titan (FOSSIL) W.M. Gabb, 1873 †
Mitra transiens (FOSSIL) L.M.D. Bellardi, 1887 †
Mitra triplicata E.C. Von Martens, 1904
Strigatella tristis (W.J. Broderip, 1836)
Mitra tuberosa (L.A. Reeve, 1845)
Nebularia turgida L.A. Reeve, 1845
Cancilla turneri G.T. Poppe, S.P. Tagaro& R. Salisbury, 2009
Clifdenia turneri (FOSSIL) C.R. Laws, 1941 †
Mitra turricola (FOSSIL) Christofori & G. Jan,1832 †
Strigatella typha L.A. Reeve, 1845
Fusimitra ulala E.F. Garcia, 2011
Pterygia undulosa (L.A. Reeve, 1844)
Mitra ustulata L.A. Reeve, 1844
Domiporta valdacantamessae S. J. Maxwell, Dekkers, Berschauer& Congdon, 2017
Imbricaria vanikorensis (J.R.C. Quoy& J.P. Gaimard, 1833)
Mitra variabilis L.A. Reeve, 1844