Gibbula kahtanenesis (FOSSIL) A. Oleinik, 1991 †
Jujubinus karpathoensis F. Nordsieck, 1973
Jujubinus karpathoensis aegeensis F. Nordsieck, 1982
Jujubinus keralaensis (FOSSIL) M. Harzhauser, 2014 †
Thalotia khlimax C. Vilvens, 2012
Alcyna kingensis (C.J. Gabriel, 1956)
Clanculus kinzelbachi F. Nordsieck, 1982
Trochus kochii P.M. Pallary, 1900
Trochus kochii (R.A. Philippi, 1844)
Clanculus korkosi B.S. Singer, H.K. Mienis& D.L. Geiger, 2000
Priotrochus kotschyi (R.A. Philippi, 1849)
Clanculus kraussii (R.A. Philippi, 1846)
Monodonta labio (C. Linnaeus, 1758)
Trochus laciniatus L.A. Reeve, 1848
Stomatella laevis (W.H. Pease, 1868)
Trochus laevis (FOSSIL) Sowerby, 1846 †
Cantharidus lamarcki (FOSSIL) (G.P. Deshayes †)
Jujubinus lamarckii (FOSSIL) (G.P. Deshayes, 1832 †)
Jujubinus lamarckii angustus (FOSSIL) (G.P. Deshayes, 1864) †
Trochus lamprus R.B. Watson, 1881
Trochus langanensis (FOSSIL) Moore †
Clanculus largillierti (R.A. Philippi, 1849)
Charisma latebrosa (C. Hedley, 1907)
Clanculus laurae A. Cecalupo, G. Buzzurro& M. Mariani, 2008
Fossarina legrandi W.F. Petterd, 1879
Gibbula lehmanni (FOSSIL) (K.T. Menke, 1843 †)
Prothalotia lehmanni (K.T. Menke, 1843)
Notogibbula lehmanni (K.T. Menke, 1843)
Synaptocochlea lekalekanum (FOSSIL) (H.S. Ladd, 1945 †)
Solariconulus lemkei (FOSSIL) (Wittenburg, 1908 †)
Monilea lentiginosa (A. Adams, 1853)
Monilea lentiginosa morti T. Iredale, 1929
Strigosella lepida (R.A. Philippi, 1846)
Prothalotia lesueuri (P. Fischer, 1880)
Clanculus leucomphalus J.C. Verco, 1905