Neoathleta labrellus (FOSSIL) (J.B.P.A. Lamarck,1802 †)
Myobarbum laevigatum (FOSSIL) N.F. Sohl, 1963 †
Eovoluta lajoyi (FOSSIL) (G.P. Deshayes, 1835 †)
Sindhiluta lakhraensis (FOSSIL) D. Merle & J.M. Pacaud,2014 †
Scaphella lamberti (FOSSIL) (J. de C. Sowerby,1816 †)
Cymbiola laminusa G.T. Poppe, S.P. Tagaro& P. Bail, 2011
Harpulina lapponica (C. Linnaeus, 1767)
Harpulina lapponica loroisi (A. Valenciennes, 1863)
Alcithoe larochei J. Marwick, 1926
Alcithoe larochei ostenfeldi (T. Iredale, 1937)
Alcithoe larochei tigrina P. Bail, A. Limpus& Y. Terryn, 2005
Lyria laseroni (T. Iredale, 1937)
Athleta lasharii (FOSSIL) D. Merle & al., 2014 †
Athleta lata (FOSSIL) (J. Marwick, 1926 †)
Miomelon lautaroi (FOSSIL) C. Nielsen& D. Frassinetti, 2007 †
Liopeplum leioderma (FOSSIL) (T.A. Conrad, 1860 †)
Fusivoluta lemaitrei G.T. Poppe, 1992
Enaeta leonardhilli (E.J. Petuch, 1988)
Lyria leonardi W.K. Emerson, 1985
Alcithoe lepida (FOSSIL) J. Marwick, 1926 †
Lyria leslieboschae (W.K. Emerson & W.E. Sage,1986)
Voluticella levensis (FOSSIL) K.V.W. Palmer, 1953 †
Fulgoraria leviuscula H.A. Rehder, 1969
Athleta lima (FOSSIL) (Sowerby, 1823 †)
Lyria limata (FOSSIL) R.C. Hoerle & E.H. Vokes,1978 †
Voluta limbata (FOSSIL) R. Tate, 1889 †
Athleta limopsis (FOSSIL) (T.A. Conrad, 1860 †)
Livonia limpusi P. Bail, 1999
Enaeta lindae E.J. Petuch, 2013
Amoria lineola P. Bail & A. Limpus, 2009
Athleta lisbonensis (FOSSIL) T.H. Aldrich †
Athleta listerarum (FOSSIL) Renard, 1994 †
Volutospina luctator (FOSSIL) (J. de C. Sowerby,1823 †)
Athleta lugardi (FOSSIL) R.B. Newton, 1922 †
Scaphella luizcoutoi J. Coltro, 1998