Clavocerithium kendricki (FOSSIL) Darragh, 2017 †
Cerithium kickapooense (FOSSIL) Stanton, 1947 †
Cerithium kickapooense valverdense (FOSSIL) Stanton, 1947 †
Cerithium kikaiense H.A. Pilsbry, 1904
Cerithium kobelti R.W. Dunker, 1877
Rhinoclavis kochi (R.A. Philippi, 1848)
Rhinoclavis kochi recurva (G.B. II Sowerby, 1855)
Bittium koeneni (FOSSIL) †
Pictorium koperbergi (M.M. Schepman, 1907)
Cerithium kreukelorum Gemert, 2012
Cerithium kurodai J. Makiyama, 1927
Clavocerithium lacazei A.E.M. Cossmann, 1898
Bittium lacteum (R.A. Philippi, 1836)
Heterogyrella ladina (FOSSIL) (E.A.L. Kittl, 1899 †)
Zebittium laevicordatum A.W.B. Powell, 1937
Iddingsia laeviusculum (FOSSIL) (W.M. Gabb, 1869 †)
Cerithium lallierianum D'Orbigny
Cerithium lamellosum (FOSSIL) J.G. Bruguière, 1792 †
Cerithium lamellosum inabsolutum (FOSSIL) G.P. Deshayes, 1864 †
Bittium larrieyense (FOSSIL) (L. Vignal, 1911 †)
Lirobittium larum (P. Bartsch, 1911)
Cerithium latisulcatum (FOSSIL) W.H. Hudleston, 1889 †
Bittium latreillii (B.C.M. Payraudeau, 1826)
Cerithium lautum (W. Kobelt, 1908)
Bittium lawleyanum (J.C.H. Crosse, 1863)
Zefallacia lawsi (FOSSIL) J. Marwick, 1948 †
Cerithium leckenbyi (FOSSIL) W.H. Hudleston, 1884 †
Cerithium leckhamptonensis (FOSSIL) W.H. Hudleston, 1889 †
Orthochetus lefroyanus (FOSSIL) (J.L.H. Michelin, 1828 †)
Cerithium leithi (FOSSIL) Hislop, 1859 †
Cerithium lentiginosum G.B. II Sowerby, 1855
Rhinoclavis leognanensis (FOSSIL) A.E.M. Cossmann& M.A. Peyrot, 1922 †
Cerithium leptocharactum H.A. Rehder, 1980
Argyropeza leucocephala (R.B. Watson, 1886)
Cerithium liassicum (FOSSIL) Moore †