Tucetona traversi (FOSSIL) (F.W. Hutton, 1873 †)
Glycymeris trelissickensis (FOSSIL) J. Marwick, 1923 †
Glycymeris trigonella (FOSSIL) T.A. Conrad, 1833 † Alabama, Choctaw County
Tucetona tsugioi A. Matsukuma, 1984 Philippines, Sulu Sea42,7 mm
Glycymeris tumefactus (FOSSIL) H.A. Pilsbry& J. Brown, 1917 † Colombia, La Chorrera
Glycymeris undata (C. Linnaeus, 1758) Bahamas25 mm
Tucetona usiacurii (FOSSIL) (Anderson, 1929 †) Colombia, Barano
Glycymeris utcholokensis (FOSSIL) Ilyina, 1962 † Western Kamchatka
Glycymeris vancouverensis (FOSSIL) (Clark & Arnold 1923) †
Glycymeris vanhengstumi J. Goud & G.S. Gulden,2009 Canary Islands26 mm
Glycymeris variabilis (FOSSIL) (Sowerby, 1824 †) Great Britain, Suffolk
Glycymeris vaughani (FOSSIL) Woods † UK, Devon
Glycymeris vestita R.W. Dunker, 1877 South China Sea29 mm
Glycymeris viamediae (FOSSIL) C.J. Maury, 1912 † Trinidad and Tobago, Siparia
Costaglycymeris virginiae (FOSSIL) (Wagner, 1848 †) USA, Virginia, Surry
Melaxinaea vitrea (J.B.P.A. Lamarck, 1819) Australia, Keppel Bay42 mm
Glycymeris waipipiensis (FOSSIL) J. Marwick, 1923 †
Tucetona wairarapaensis (FOSSIL) (Powell, 1938 †)
Glycymeris waitakiensis (FOSSIL) J. Marwick, 1923 †
Costaglycymeris waltonensis (FOSSIL) (Gardner, 1947 †) Florida
Glycymeris wateleti (FOSSIL) G.P. Deshayes, 1858 † France, Paris Basin
Glycymeris woodsi (FOSSIL) Clark & J.W. Durham,1946 † Colombia, Bolivar
Glycymeris wrigleyi (FOSSIL) Curry, 1958 † Massachusetts, Marthas Vineyard
Glycymeris yessoensis G.B. III Sowerby, 1886 China, Zhejiang39 mm