Ptychosalpinx kissimmeensis (FOSSIL) E.J. Petuch, 1994 †
Buccinum kjennerudae P. Bouchet & A. Warén,1985
Calliloncha knudseni P. Bouchet & A. Warén,1986
Buccinum kobjakovae A.N. Golikov & B.I. Sirenko,1988
Kryptos koehleri (É.A.A. Locard, 1896)
Manaria koperbergae (FOSSIL) Fraussen & Stahlschmidt,2016 †
Neptunea koreana T.C. Yen, 1976
Buccinum koreanum B.L. Choe, S.H. Yoon& T. Habe, 1992
Penion koruahinensis (FOSSIL) (J.A. Bartrum & Powell,1928 †)
Buccinum koshikinum T.A. Okutani, 1988
Pararetifusus kosugei A. Kosyan, 2006
Mohnia krampi (G.A.W. Thorson, 1951)
Pollia krauseri J. Tröndlé, 2013
Plicifusus kroeyeri (H.P.C. Møller, 1842)
Colus kujianus R. Tiba, 1973
Buccinum kuratai (FOSSIL) Y. Otuka, 1943 †
Mohnia kurilana W.H. Dall, 1913
Buccinum kurilense A.N. Golikov & B.I. Sirenko,1988
Buccinum kurodai K. Kanehara, 1937
Manaria kuroharai M. Azuma, 1960
Siphonalia kuronoi T.C. Lan & Yoshihiro Goto,2004
Neptunea kuroshio K. Oyama in T. Kira, 1959
Buccinum kushiroense T. Habe & K. Itô, 1976
Buccinum kushitonum W.H. Dall, 1907
Turrisipho lachesis (O.A.L. Mörch, 1869)
Siphonalia laddi (FOSSIL) F.S. MacNeil, 1961 †
Neptunea laeva A.N. Golikov, V.N. Goryachev& Y.I. Kantor, 1987
Buccinum laevigatum (FOSSIL) J.F. Gmelin, 1791 †
Burnupena lagenaria (J.B.P.A. Lamarck, 1822)
Buccinum lamelliferum V.J. Lus, 1976
Neptunea lamellosa A.N. Golikov, 1962
Neptunea lamellosa acuminata A.N. Golikov, 1962
Chauvetia lamyi J. Knudsen, 1956
Engina lanceolata (J.T. Kuroda & T. Habe,1971)
Prodotia lannumi J.S. Schwengel, 1950