Tateiwaia tateiwai (FOSSIL) (J. Makiyama, 1934 †)
Cerithidea tegalensis (FOSSIL) C.H. Oostingh, 1935 †
Pirenella teilhardi P.M. Pallary, 1912
Telescopium telescopium (C. Linnaeus, 1758)
Terebralia thiara (FOSSIL) (J.G. Bruguière, 1792 †)
Telescopium titan (FOSSIL) Martin, 1889 †
Cerithidea tokunariensis (FOSSIL) O. Masuda, 1956 †
Cerithidea tonkiniana J.F. Mabille, 1887
Tympanotonos tournoueri (FOSSIL) (C. Mayer, 1878 †)
Potamidopsis tricarinatus (FOSSIL) (J.B.P.A. Lamarck,1804 †)
Potamidopsis tricarinatus arenulatis (FOSSIL) Boussac, 1905 †
Potamidopsis tricarinatus crispiacensis (FOSSIL) Boussac, 1905 †
Potamidopsis tricarinatus vouastensis (FOSSIL) Boussac, 1905 †
Ptychopotamides tricinctus (FOSSIL) (G.B. Brocchi, 1814 †)
Tympanotonos trilirus (FOSSIL) D.T. Dockery, 1993 †
Cerithidea tuba (FOSSIL) (G.P. Deshayes, 1864 †)
Tympanotonos turris (G.P. Deshayes, 1833 )
Vicaryella tyosenica (FOSSIL) Yabe & K.M. Hatai, 1938 †
Pyrazus valeriae (FOSSIL) de Verneuil & de Loriere,1868 †
Cerithidea valida Adams, 1852
Potamides vincularis (FOSSIL) A.E.M. Cossmann & G. Pissarro †,
Pyrazus waitemataensis (FOSSIL) A.W.B. Powell& J.A. Bartrum, 1929 †
Cerithidea weyersi (P. Dautzenberg, 1899)
Vicarya yokoyamai (FOSSIL) T. Takeyama, 1933 †