Afonsoconus kinoshitai (J.T. Kuroda, 1956)
Virgiconus kintoki (T. Habe & S. Kosuge,1970)
Purpuriconus kirkandersi (E.J. Petuch, 1987)
Ximeniconus kitteredgei (FOSSIL) (C.J. Maury, 1917 †)
Klemaeconus klemae (B.C. Cotton, 1953)
Dauciconus kohni (J.H. McLean& J.W. Nybakken, 1979)
Pseudolilliconus korni (G. Raybaudi Massilia,1993)
Embrikena kostini R.M. Filmer, A. Monteiro& al., 2012
Pionoconus koukae E. Monnier, L. Limpalaër& A. Robin, 2013
Conasprelloides kremerorum (E.J. Petuch, 1988)
Pseudolilliconus kuiperi (R.G. Moolenbeek, 2006)
Purpuriconus kulkulcan (E.J. Petuch, 1980)
Graphiconus kuroharai (T. Habe, 1965)
Conus kutaiensis (FOSSIL) Beets, 1983 †
Lithoconus kyudawonensis (FOSSIL) E.W. Vredenburg, 1921 †
Cryptoconus labiatus (FOSSIL) (G.P. Deshayes, 1834 †)
Conus lacteus L.A. Reeve, 1844
Conus laevigatus J.H.F. Link, 1807
Conus laeviponderosus (FOSSIL) F. Sacco, 1893 †
Conus lamarckii (FOSSIL) Edwards, 1856 †
Darioconus lamberti (S.M. Souverbie, 1877)
Profundiconus lani (P.R. Crandall, 1979)
Conus lar A.A.H. Lichtenstein, 1794
Gradiconus largillierti (L.C. Kiener, 1847)
Conus larvatus (FOSSIL) H.A. Pilsbry & Johnson,1922 †
Graphiconus laterculatus (G.B. II Sowerby, 1870)
Darioconus laueri E. Monnier & L. Limpalaër,2013
Conus laurenae (FOSSIL) E.J. Petuch, 1994 †
Conolithes lavillei (FOSSIL) Cossmann, 1913 †
Conus lebruni (FOSSIL) G.P. Deshayes, 1865 †
Miliariconus lecourtorum F.Jr. Lorenz, 2011
Conasprelloides leekremeri (E.J. Petuch, 1987)
Cylinder legatus (J.B.P.A. Lamarck, 1810)
Lamniconus lemniscatus (L.A. Reeve, 1849)
Conus lemoni (FOSSIL) E.J. Petuch, 1990 †