Chlamys kumanodoensis (FOSSIL) O. Masuda, 1953 † Russia, Moneron Island
Hyalopecten kurilensis Kamenev, 2016
Fortipecten kuroishiensis (FOSSIL) Kotaka & Noda 1967 †
Amussiopecten labadyei (FOSSIL) (d'Archaic & Haime,1853 †) Pakistan
Vertipecten lachenbruchi (FOSSIL) F.S. MacNeil, 1967 †
Anguipecten lamberti (S.M. Souverbie, 1874) New Caledonia, Lifou70 mm
Camptonectes laminatus (FOSSIL) (J. de C. Sowerby,1818 †) Afghanistan
Pecten laminatus (FOSSIL) J. de C. Sowerby, 1818 † China
Bractechlamys langfordi (W.H. Dall, P. Bartsch& H.A. Rehder, 1938) Hawaii, Oahu22 mm
Neithea lapparenti (FOSSIL) Choffat, 1900 † Italy, Campobasso
Azumapecten larvata (L.A. Reeve, 1853)
Leptopecten latiauratus (T.A. Conrad, 1837) West Panama23 mm
Leptopecten latiauratus monotimeris (T.A. Conrad, 1837) USA, California33,1 mm
Talochlamys laticostata (FOSSIL) A.G. Beu& T.A. Darragh, 2001 †
Chlamys latissima (FOSSIL) (G.B. Brocchi, 1814 †) Turkey, Karaman
Macrochlamis latissima (FOSSIL) (J.G. Bruguière †) Italy, Liguria145 mm
Laevichlamys lauensis (FOSSIL) (H.S. Ladd, 1945 †) Fiji, Vanua Levu
Euvola laurenti (J.F. Gmelin, 1791) Belize72,4 mm
Pecten lecontei (FOSSIL) R. Arnold, 1906 † Mexico, Isla Cedros
Scaeochlamys lemniscata (L.A. Reeve, 1853) South Africa, Natal32 mm
Janopecten lenaensis (FOSSIL) Kurushin, 1985 †
Camptonectes lens (FOSSIL) (Sowerby, 1818 †) Russia, Krasnoyarsk, Khatangskiy rayon
Mimachlamys lentiginosa (L.A. Reeve, 1853) Philippines, Balicasag Island55,6 mm
Veprichlamys leprosa (FOSSIL) A.G. Beu& T.A. Darragh, 2001 † Australia, Victoria, Corio - Inner
Argopecten levicostatus (FOSSIL) F. Toula, 1909 † Costa Rica
Pseudohinnites levii H.H. Dijkstra, 1989 New Caledonia, Huon Island34 mm
Pseudamussium lilli (FOSSIL) (G.G. Pusch, 1837 †) Belgium
Delectopecten lillisi (FOSSIL) L.G. Hertlein, 1934 † United States, California, Fresno
Laevichlamys limatulus (L.A. Reeve, 1853) Fiji Islands14,7 mm
Aequipecten lineolaris (J.B.P.A. Lamarck, 1819) Venezuela46 mm
Leptopecten linki (W.H. Dall, 1926) Nicaragua28,9 mm
Scaeochlamys livida (J.B.P.A. Lamarck, 1819) Australia, Sydney51 mm
Scaeochlamys lividae (FOSSIL) (J.B.P.A. Lamarck,1819 †)
Patinopecten lohri (FOSSIL) L.G. Hertlein, 1928 † USA, California, Los Angeles
Amusium lompocensis (FOSSIL) R. Arnold, 1907 † Mexico, Baja California Sur, Comondú