Nuculavus levatiformis (FOSSIL) (Walcott, 1884 †)
Nucula libera W. Bergmans, 1991
Nucula lineata (FOSSIL) G.A. Goldfuss, 1837 †
Nucula lingualis (FOSSIL) Phillips, 1848 †
Ennucula linki (W.H. Dall, 1916)
Nuculopsis lipoensis (FOSSIL) A.W. Grabau, 1934 †
Nuculoidea lirata (FOSSIL) (T.A. Conrad †)
Nuculopsis lisser (FOSSIL) Babin & al. 2001 †
Acila longa (FOSSIL) Kalishevich, 1969 †
Lamellinucula lunulae (FOSSIL) del Río& Y. Camacho-García, 2002 †
Nucula magna (FOSSIL) Lamont †
Nucula magnifica (FOSSIL) T.A. Conrad, 1833 †
Nucula major (FOSSIL) H.G. Richards, 1944 †
Palaeonucula makitoensis (FOSSIL) I. Hayami, 1959 †
Nucula malabarica S.C.T. Hanley, 1860
Nucula mancorensis (FOSSIL) A.A. Olsson, 1931 †
Pronucula maoria Powell, 1937
Ennucula mareana (N.E. Weisbord, 1964)
Nucula margaritifera (FOSSIL) J.H.F. Douvillé, 1916 †
Nucula mariae F. Nolf, 2005
Nucula marmorea R.B. Hinds, 1843
Nucula marshalli H.G. Schenck, 1939
Nucula martini (FOSSIL) Finlay, 1927 †
Nucula mauricensis (FOSSIL) G.F. Harris, 1919 †
Condylonucula maya R.C. Moore, 1977
Nucula mayeri (FOSSIL) M. Hörnes, 1865 †
Nucula mayi (T. Iredale, 1930)
Nucula mediavia (FOSSIL) G.F. Harris, 1896 †
Leionucula melvilleana (FOSSIL) Whittle & al., 2012 †
Nuculavus menuda (FOSSIL) B.S. Kues, 1991 †
Nucula mesembrina (C. Hedley, 1916)
Nucula micheleae (FOSSIL) Marincovich Jr., 1993 †
Nucula microconcentrica (FOSSIL) B. Wade, 1926 †
Lamellinucula minor (FOSSIL) (G.P. Deshayes, 1858 †)
Acila minutoides J.T. Kuroda& T. Habe in T. Habe, 1958