Semele jovis (L.A. Reeve, 1853)
Semele jucunda (L.A. Reeve, 1853)
Iacra kallima (A.E. Salisbury, 1934)
Lonoa katoi T. Habe, 1976
Abra kinoshitai J.T. Kuroda& T. Habe in T. Habe, 1958
Abra kraemmeri M. Nicklés, 1955
Semele krauseana (FOSSIL) R. Tate, 1887 †
Abra kyurokusimana (S. Nomura & K.M. Hatai,1940)
Semele laevis (G.B. I Sowerby, 1833)
Syndosmya lamberti (FOSSIL) (G.P. Deshayes, 1857 †)
Ervilia lamelloexteria (FOSSIL) D.T. Dockery, 1982 †
Cumingia lamellosa G.B. I Sowerby, 1833
Cumingia lamellosa coarctata G.B. I Sowerby, 1833
Semele lamellosa (L.A. Reeve, 1853)
Thyellisca lamellosa (C.B. Adams, 1873)
Semele lamyi M. Nicklés, 1955
Abra lara W.H. Turton, 1932
Theora lata (R.B. Hinds, 1843)
Abra lecointrei M. Nicklés, 1955
Abra lehmanni (FOSSIL) Anderson, 1964 †
Semele lenticularis (G.B. I Sowerby, 1833)
Ervilia lignitica (FOSSIL) Aldrich 1921 †
Semele linosa (FOSSIL) T.A. Conrad, 1833 †
Abra lioica W.H. Dall, 1886
Abra longicallus (A. Scacchi, 1835)
Abra longicallus americana A.E. Verrill & K.J. Bush,1898
Abra longidentata M. Huber, 2015
Theora lubrica A.A. Gould, 1861
Abra lunella (A.A. Gould, 1861)
Syndosmya macrodonta (FOSSIL) (G.P. Deshayes, 1857 †)
Abra magna A. Adams, 1861
Abra marshalli (FOSSIL) (Finlay, 1927 †)
Semele martinii (L.A. Reeve, 1853)
Abra marylandica (FOSSIL) L.C. Glenn, 1904 †
Syndosmya media (FOSSIL) (G.P. Deshayes, 1857 †)