Nesiocypraea teramachii neocaledonica F.Jr. Lorenz, 2002
Nesiocypraea teramachii polyphemus F.Jr. Lorenz, 2002
Talostolida teres (J.F. Gmelin, 1791)
Talostolida teres alveolus (C.M. Tapparone-Canefri,1882)
Talostolida teres elatensis (E.L. Heiman & H.K. Mienis,2002)
Talostolida teres janae (F.Jr. Lorenz, 2002)
Talostolida teres natalensis (E.L. Heiman & H.K. Mienis,2002)
Luria tessellata (W.J. Swainson, 1822)
Luria tessellata lani G. Raybaudi Massilia,1986
Chelycypraea testudinaria (C. Linnaeus, 1758)
Chelycypraea testudinaria ingens F.A. Schilder & M. Schilder,1939
Loxacypraea testudinea (FOSSIL) L. Dolin, 2015 †
Afrozoila teulerei (B. Cazenavette, 1846)
Zonaria theresae (FOSSIL) L. Dolin, 1991 †
Zoila thersites (J.S. Gaskoin, 1849)
Zoila thersites contraria T. Iredale, 1935
Zoila thersites eburnea L. Raybaudi Massilia,1985
Erosaria thomasi (J.C.H. Crosse, 1865)
Erosaria thomasi philmarti G.T. Poppe, 1993
Megalocypraea thomasi (FOSSIL) (A.A. Olsson, 1930 †)
Cypraea tigris C. Linnaeus, 1758
Cypraea tigris lyncicrosa W.R. Steadman & B.C. Cotton,1943
Cypraea tigris olgiatiana L. Bozzetti, 2009
Cypraea tigris pardalis G. Shaw, 1795
Cypraea tigris schilderiana C.N. Cate, 1961
Austrocypraea towncreekensis (FOSSIL) D.T. Dockery, 1977 †
Siphocypraea transitoria (FOSSIL) A.A. Olsson & R.E. Petit,1964 †
Zonaria travancorica (FOSSIL) A. Dey, 1961 †
Notadusta trelissickensis (FOSSIL) (H.H. Suter, 1917 †)
Trona trinitatensis (FOSSIL) W.C. Mansfield, 1925 †
Siphocypraea trippeana (FOSSIL) J.J. Parodiz, 1988 †
Muracypraea tuberae (FOSSIL) (W.M. Ingram, 1947 †)
Megalocypraea tuberculosa (FOSSIL) (P.L. Duclos, 1852 †)
Lyncina tumida (FOSSIL) (J.P.S. Grateloup,1834 †)
Zonaria tumulus (FOSSIL) A. Heilprin, 1886 †