Eulima langleyi G.B. III Sowerby, 1892
Eulima lapazana (P. Bartsch, 1917)
Eulima lapida A. Adams, 1863
Melanella lastra P. Bartsch, 1917
Sticteulima lata P. Bouchet & A. Warén,1986
Umbilibalcis lata (W.H. Dall, 1889)
Flemmingia laticostata (FOSSIL) (Münster, 1841 †)
Eulima latipes R.B. Watson, 1883
Melanella laurae (H.B.S. Friele, 1886)
Melanella lautoides (FOSSIL) Finlay & J. Marwick,1937 †
Eulima leachi A. Adams, 1861
Eulima legrandi R.H. Beddome, 1883
Sticteulima lentiginosa (A. Adams, 1861)
Bulimeulima lentocontracta (FOSSIL) (C.R. Laws, 1941 †)
Mucronalia lepida J.C. Melvill, 1906
Eulima leptostoma E.A. Smith, 1910
Eulima leptozona P. Dautzenberg & H. Fischer,1896
Melanella letsonae H.A. Pilsbry, 1917
Echineulima leucophaes (J.R. le B. Tomlin& L.J. Shackleford, 1913)
Melanella levantina (M. Oliverio, G. Buzzurro& R. Villa, 1994)
Eulima levis (FOSSIL) S. Tokunaga, 1906 †
Stilifer linckiae P.B. Sarasin & K.F. Sarasin,1887
Eulimostraca linearis (P.P. Carpenter, 1858)
Fusceulima lineata (T.A. de M. Monterosato,1869)
Melanella lineata (T.A. de M. Monterosato,1869)
Niso lineata (FOSSIL) T.A. Conrad, 1841 †
Balcis lipara (FOSSIL) W.P. Woodring, 1970 †
Curveulima litoris C.F. Laseron, 1955
Eulima lodderae (M. Lodder,1900 ex R. Tate MS)
Scalenostoma lodderae (W.F. Petterd, 1884)
Niso lomana P. Bartsch, 1917
Melanella lubrica (T.A. de M. Monterosato,1890)
Melanella lucida (A.E. Verrill, 1884)
Entocolax ludwigii W. Voigt, 1888
Melanella luminosa B.A. Marshall, 1997