Leucozonia leucozonalis (J.B.P.A. Lamarck, 1822)
Falsicolus levata (FOSSIL) Finlay, 1930 †
Piestochilus levis (FOSSIL) L.W. Stephenson, 1941 †
Fusinus lightbourni M.A. Snyder, 1984
Tarantinaea lignaria (C. Linnaeus, 1758)
Latirus lignosus (J.F. Gmelin, 1791)
Latirus ligusticus (FOSSIL) L.M.D. Bellardi, 1884 †
Cinctura lilium (Fischer, 1807)
Fusinus lincolnensis J.C.H. Crosse, 1868
Fasciolaria lindae E.J. Petuch, 1994
Terebraspira lindae (FOSSIL) E.J. Petuch, 1994 †
Streptopelma lintea (FOSSIL) (R. Tate, 1888 †)
Peristernia lirata (W.H. Pease, 1868)
Granulifusus lochi R. Hadorn & K. Fraussen,2005
Aquilofusus loczyi (FOSSIL) J. Noszky, 1936 †
Peristernia loebbeckei (H.C. Küster & W. Kobelt,1876)
Clavilithes loiseli (FOSSIL) Chédeville, 1904 †
Clavilithes longiformis (FOSSIL) D.T. Dockery, 1984 †
Fusinus longiroster (FOSSIL) (G.B. Brocchi, 1814 †)
Microfulgur longirostris (FOSSIL) (P. Marshall, 1917 †)
Clavilithes longispira (FOSSIL) Doncieux, 1908 †
Fusinus longissimus (J.F. Gmelin, 1791)
Fusinus longiusculoides (FOSSIL) C.J. Maury, 1912 †
Chryseofusus lorenzi K. Fraussen& P. Stahlschmidt, 2014
Latirus luculentus A. Adams, 1864
Lugubrilaria lugubris (A. Adams & L.A. Reeve,1847)
Fusinus luteopictus (W.H. Dall, 1877)
Fusolatirus luteus M.A. Snyder & P. Bouchet,2006
Latirus lynchi (FOSSIL) (B. de Basterot, 1825 †)
Latirus lynchi densestriata (FOSSIL) (L.M.D. Bellardi, 1884) †
Pleuroploca lyonsi L. Bozzetti, 2008
Fasciolaria macdonaldi (FOSSIL) A.A. Olsson, 1922 †
Fusinus macnairyensis (FOSSIL) B. Wade, 1926 †
Clavilithes macrospira (FOSSIL) A.E.M. Cossmann, 1889 †
Clavilithes macrospiratus (FOSSIL) A.W. Grabau, 1904 †