Arca suspecta (FOSSIL) A.A. Olsson, 1964 †
Barbatia suzzalloi (FOSSIL) C.S. Weaver& K.V.W. Palmer, 1922 †
Taeniarca taeniata (FOSSIL) (W.H. Dall, 1898 †)
Paranadara taludae J. de A. Francisco, J.C.N. Barros& S.F.B. de Lima, 2012
Anadara tamarana (FOSSIL) F. Hodson & al., 1927 †
Anadara tambacana (FOSSIL) K. Martin, 1883 †
Calloarca tamikoae (K. Sakurai, 1969)
Arca tanervillae L.A. Reeve
Asperarca tarcylae J. de A. Francisco, J.C.N. Barros& S.F.B. de Lima, 2012
Anadara tatunokutiensis (FOSSIL) (S. Nomura & K.M. Hatai †),
Anadara tatunokutiensis nagawensis (FOSSIL) K. Chinzei, 1961 †
Scapharca tegalensis (FOSSIL) K. Martin, 1910 †
Acar tegulata (FOSSIL) (Gueranger 1867) †
Cunearca telemba (FOSSIL) A.A. Olsson, 1964 †
Anadara tenebricum (L.A. Reeve, 1844)
Calloarca tenella (L.A. Reeve, 1844)
Fugleria tenera (L.A. Reeve, 1844)
Barbatia tenuicrenata A.E.M. Cossmann, 1907
Barbatia terebrans (T. Iredale, 1939)
Scapharca terhaari (FOSSIL) C.H. Oostingh, 1935 †
Arca terminumbonis (FOSSIL) J. Grant & H.R. Gale,1931 †
Arca teruelensis (FOSSIL) Author unknown †
Anadara teschi (FOSSIL) T. Shuto, 1982 †
Arca tetragona Poli, 1795
Calloarca tetraquetra (R.N. Kilburn, 1983)
Barbatia textiliosa (FOSSIL) G.P. Deshayes, 1858 †
Anadara thauma (FOSSIL) C.J. Maury, 1925 †
Anadara thomasensis (FOSSIL) W.P. Woodring, 1925 †
Anadara tirantensis (FOSSIL) F. Hodson & al., 1927 †
Arca tjidamarensis (FOSSIL) K. Martin, 1879 †
Scapharca tjilanangensis (FOSSIL) K. Martin, 1910 †
Lunarca tolepia (FOSSIL) W.H. Dall, 1898 †
Anadara topangaensis N.W. Reinhart, 1943
Trisidos torta (O.A.L. Mörch, 1850)
Trisidos tortuosa (C. Linnaeus, 1758)