Afrolittorina knysnaensis (C.F.F. von Kraussin R.A. Philippi, 1847)
Littoraria kozaiensis S. Nomura & H. Onishi,1940
Lacuna latifasciata A. Adams, 1863
Laevilitorina latior H.B. Preston, 1912
Mainwaringia leithii (E.A. Smith, 1876)
Echinolittorina lemniscata (R.A. Philippi, 1846)
Lacuna lepidula A. Adams, 1863
Echinolittorina leucosticta (R.A. Philippi, 1847)
Echinolittorina lineolata (A.V.M.D. D'Orbigny,1840)
Littorina littorea (C. Linnaeus, 1758)
Lacuna loustaui (FOSSIL) G.P. Deshayes, 1861 †
Littoraria lucida (FOSSIL) M. Yokoyama, 1927 †
Lacuna lukinii (A.N. Golikov& V.V. Gulbin, 1978)
Littoraria lutea (R.A. Philippi, 1847)
Littoraria luteola (J.R.C. Quoy& J.P. Gaimard, 1833)
Peasiella lutulenta D.G. Reid, 1989
Laevilitorina macphersonae (R.K. Dell, 1964)
Echinolittorina malaccana (R.A. Philippi, 1847)
Littorina mandshurica (L. von Schrenck, 1861)
Laevilitorina mariae (J.E. Tenison-Woods,1876)
Echinolittorina marisrubri D.G. Reid, 2007
Lacuna marmorata W.H. Dall, 1919
Echinolittorina marquesensis D.G. Reid, 2007
Peasiella mauritiana (J.M.R.M. Viader, 1951)
Littoraria mauritiana (J.B.P.A. Lamarck, 1822)
Littoraria melanostoma (J.E. Gray, 1839)
Bembicium melanostomum (J.F. Gmelin, 1791)
Echinolittorina meleagris (V.L.V. Potiez& A. Michaud, 1838)
Echinolittorina mespillum (J.K. Megerle Von Mühlfeld,1824)
Echinolittorina mespillum minima (W. Wood, 1828)
Littorina milcorama R.A. Philippi, 1838
Echinolittorina miliaris (J.R.C. Quoy& J.P. Gaimard, 1833)
Echinolittorina millegrana (R.A. Philippi, 1848)
Lacuna minor (W.H. Dall, 1919)
Mirolacuna mirulus (FOSSIL) (R. Tate, 1898 †)