Gibbula leucophaea (R.A. Philippi, 1836)
Gibbula leucophaea delicata G.S. Coen, 1937
Igonoia levimargarita (FOSSIL) J. Wild & J.D. Stilwell,2016 †
Alcyna lifuensis (J.C. Melvill & R. Standen,1896)
Jujubinus ligeriensis (FOSSIL) B.M. Landau, L. Ceulemans& F. Van Dingenen, 2016 †
Clanculus limbatus J.R.C. Quoy, 1834
Phorcus lineatus (E.M. Da Costa, 1778)
Trochus lineatus (FOSSIL) C. Moore, 1866 †
Leiopyrga lineolaris (A.A. Gould, 1861)
Stomatella lintricula (A. Adams, 1850)
Lirularia lirulata (P.P. Carpenter, 1864)
Trochus lissochilus (FOSSIL) E.A.L. Kittl, 1891 †
Gibbula loculosa A.A. Gould, 1861
Botelloides ludbrookae W.F. Ponder, 1985
Monodonta lugubris J.B.P.A. Lamarck, 1822
Trochus lundgreni (FOSSIL) Lindström 1884 †
Clanculus lutosus (FOSSIL) B.F. Kensley & Pether,1986 †
Jujubinus mabelae E. Rolán & F. Swinnen,2009
Notogibbula maccullochi (C. Hedley, 1907)
Eurytrochus macculochi (C. Hedley, 1907)
Pseudostomatella maculata (J.R.C. Quoy, 1834)
Trochus maculatus C. Linnaeus, 1758
Trochus maculatus verrucosus J.F. Gmelin, 1791
Clelandella madeirensis S. Gofas, 2005
Gibbula magus (C. Linnaeus, 1758)
Thalotia maldivensis E.A. Smith, 1903
Trochus mammilaris (FOSSIL) Moore †
Monodonta marcaisi (FOSSIL) d'Orbigny, 1842 †
Clanculus margaritarius (R.A. Philippi, 1846)
Clanculus margaritarius unedo L.A. Reeve, 1851
Phorcus mariae J. Templado & E. Rolán,2012
Clanculus mariaemaris F. Rubio & E. Rolán, 2002
Stomatolina mariei (J.C.H. Crosse, 1871)
Calliotrochus marmoreus (W.H. Pease, 1861)
Cantharidus marmoreus (W.H. Pease, 1868)