Allodiscus laganus B.A. Marshall & G.M. Barker,2008
Thalassohelix laingi (H.H. Suter, 1905)
Trachycystis lamellifera (E.A. Smith, 1903)
Himeroconcha lamlanensis (G.A. Solem, 1982)
Amphidoxa latastei C.M.F. Ancey, 1889
Flammulina lateaperta R.K. Dell, 1955
Paryphantopsis lebasii J. Slapcinsky, 2005
Pseudocharopa ledgbirdi (J.W. Brazier, 1889)
Allocharopa legrandi (J.C. Cox, 1868)
Ptychodon leiodon (F.W. Hutton, 1883)
Pernagera lena T. Iredale, 1939
Teracharopa lenticula J.J. Vermeulen & D.J. Junau,2007
Helenoconcha leptalea Unknown
Ngairea levicostata J. Stanisic, 1990
Ptychodon liciae (J. Vaz, 1991)
Pseudocharopa lidgbirdi (J.W. Brazier, 1889)
Flammulina lifouana (R.P. Montrouzier, 1860)
Elsothera limula (C.M.D.E. Legrand, 1871)
Egilomen lirata (J.C. Cox, 1864)
Charopa longstaffae (H.H. Suter, 1913)
Paryphantopsis louisiadarum (O.F. von Möllendorff,1899)
Phenacohelix lucetta (F.W. Hutton, 1884)
Reticulapex lucidus K.C. Emberton & T.A. Pearce,2000
Planilaoma luckmanii (J.W. Brazier, 1877)
Charopa macgillivrayana T. Iredale, 1913
Coenocharopa macromphala J. Stanisic, 1990
Montaropa macsweeneyi F.M. Climo, 1984
Climocella maculata (H.H. Suter, 1891)
Pilula mahesiana (E.C. Von Martens, 1898)
Allodiscus mahlfeldae B.A. Marshall & G.M. Barker,2008
Phenacohelix mahlfeldae J.F. Goulstone, 2001
Cavellia major (H.H. Suter, 1892)
Climocella manawatawhia (A.W.B. Powell, 1935)
Charopa manuherikia (FOSSIL) B.A. Marshall& T.H. Worthy, 2017 †
Ladronellum mariannarum (J.F. Quadras& O.F. von Möllendorff, 1894)