Nipponomysella subtruncata (M. Yokoyama, 1927)
Thecodonta symmetrica H.A. Pilsbry, 1921
Kelliola symmetros (J.G. Jeffreys, 1876)
Tellimya tahaia B.K. Raines & M. Huber,2012
Fronsella taiwanica Y.T. Ueng & J.P. Wang,2005
Mysella tanabensis T. Habe, 1960
Tellimya tehuelcha D.G. Zelaya & C.F. Ituarte,2012
Mysella tellinula (N.H. Odhner, 1924)
Tellimya tenella (S.L. Lovén, 1846)
Kurtiella tertia S. Gofas & C. Salas, 2016
Kurtiella thielei M. Huber, 2015
Tellimya torishimensis P. Callomon, 1999
Kurtiella triangularis (R.B. Watson, 1897)
Tellimya trigona K.H. Barnard, 1964
Mysella trigonoelliptica (FOSSIL) J.D. Stilwell& Zinsmeister, 1992 †
Mysella triquetra (A.E. Verrill & K.J. Bush,1898)
Montacuta truncata (FOSSIL) Wood, 1840 †
Kurtiella tumida (Carpenter, 1864)
Kurtiella tumidula (J.G. Jeffreys, 1866)
Kurtiella umbonatum (Carpenter, 1857)
Mysella unidentata (N.H. Odhner, 1924)
Planktomya vanderlindeni J.J. Van Aartsen & W. Engl,2001
Mysella ventricosa O.A. Scarlato, 1981
Mysella vitrea C.F. Laseron, 1956
Tellimya vitrea (C. Hedley, 1907)
Tellimya vitrea aupouria (W.F. Ponder, 1968)
Montacuta voeringi H.B.S. Friele, 1877