Nuculana irradiata (G.B. II Sowerby, 1870)
Nuculana isikela (R.N. Kilburn, 1994)
Multidentata izumensis (FOSSIL) (Ichikawa & Maeda 1958) †
Ledella jamesi J.A. Allen & G. Hannah,1989
Polidevcia jamesi (FOSSIL) Biakov, 2002 †
Glyptoleda javesi (FOSSIL) C.O. Waterhouse, 1983 †
Veteranella jinjiensis (FOSSIL) C. Chen, 1982 †
Nuculana jovis (K.H.J. Thiele& S.G.A. Jaeckel, 1931)
Ledella jucatanica Z.A. Filatova& A.A. Schileyko, 1984
Jupiteria kapua (FOSSIL) J. Marwick, 1931 †
Portlandella karaginskiensis (FOSSIL) (Y.B. Gladenkov, 1972 †)
Jupiteria karaka (FOSSIL) J. Marwick, 1931 †
Nuculana karihaensis (FOSSIL) K.M. Hatai & S. Nisiyama,1949 †
Nuculana karlmartini N.E. Weisbord, 1964
Polidevcia kasanensis (FOSSIL) (de Verneuil, 1845 †)
Ledella kermadecensis J. Knudsen, 1970
Parayoldiella kermadecensis (J. Knudsen, 1970)
Nuculana khandasensis (FOSSIL) L. Krishtofovich, 1964 †
Nuculana kiiensis E. Tsuchida & T.A. Okutani,1985
Portlandella kilanskensis (FOSSIL) (Y.B. Gladenkov, 1994 †)
Dacryomya kiparisovae (FOSSIL) Kurushin, 1990 †
Parayoldiella knudseni Z.A. Filatova& A.A. Schileyko, 1985
Polidevcia kolyvanica (FOSSIL) Muromtseva, 1974 †
Jupiteria kouhaiensis (FOSSIL) J. Marwick, 1931 †
Nuculana kunashiraensis (FOSSIL) Savizky, 1972 †
Adrana kurzi (FOSSIL) W.C. Mansfield, 1932 †
Nuculana lacryma (FOSSIL) (Sowerby, 1824 †)
Ledella laevigata (FOSSIL) (Watelet 1868) †
Saccella laeviradius (H.A. Pilsbry & H.N. Lowe,1932)
Nuculana lamellata (G.B. III Sowerby, 1904)
Adrana lanceolata (Sowerby, 1817)
Poroleda lanceolata (F.W. Hutton, 1885)
Nuculana lanceta (P.H. Boshoff, 1968)
Nuculana larranagai M.A. Klappenbach& V. Scarabino, 1969
Portlandella lautenschlageri (FOSSIL) Popova, 1968 †