Bathymodiolus miomediterraneus (FOSSIL) S. Kiel & M. Taviani,2017 † Italy
Musculus mirandus E.A. Smith, 1884 Australia, Mast Head Island6,2 mm
Brachidontes mississippiensis (FOSSIL) T.A. Conrad, 1848 † USA, Mississippi
Idas modiolaeformis (R. Sturany, 1896) Italy, Gorgona Island10 mm
Brachidontes modiolus (C. Linnaeus, 1767) Cuba36,7 mm
Modiolus modiolus (C. Linnaeus, 1758) North Sea135 mm
Modiolus modiolus difficilis (J.T. Kuroda & T. Habe,1950) Alaska104,6 mm
Modiolus modulaides (P.F. Röding, 1798) Taiwan Strait72 mm
Mytilus mooraboolensis (FOSSIL) G.B. Pritchard, 1903 †
Bathymodiolus moroniae (FOSSIL) S. Kiel & M. Taviani,2017 † Italy
Sinomytilus morrisoni R.A.M. Brandt, 1974
Leiosolenus mucronatus (R.A. Philippi, 1846) Philippines23,1 mm
Mytilus muensteri (FOSSIL) Klipstein, 1843 †
Gregariella multistriata (E.A. Smith, 1872)
Brachidontes mutabilis (A.A. Gould, 1861) Japan, Tanegashima Island9,7 mm
Promytilus mytiliformis (FOSSIL) (Etheridge, 1892 †) New Zealand, Southland
Modiolus mytiloides (FOSSIL) (H.G. Bronn, 1831 †) Italy, Emilia
Septifer nagaoi (FOSSIL) K. Oyama, 1951 † Japan
Modiolus namnetensis (FOSSIL) (A.E.M. Cossmann, 1904 †) France, Brittany
Brachidontes nankoi (FOSSIL) M. Ichikawa & K. Maeda,1958 † Japan, Amakusa-Shimoshima
Musculus nanulus K.H.J. Thiele, 1930 Western Australia, Guildford
Musculus nanus R.W. Dunker, 1856 South Australia21 mm
Modiolus napanensis (FOSSIL) V.N. Sinelnikova, 1997 † Western Kamchatka
Falcimytilus nasai (FOSSIL) T. Kobayashi& M. Ichikawa, 1950 † Japan, Kumamoto
Falcimytilus nasai hirataides (FOSSIL) T. Kobayashi& M. Ichikawa, 1950 † Japan, Shikoku
Falcimytilus nasai nagaides (FOSSIL) T. Kobayashi& M. Ichikawa, 1950 † Japan, Shikoku
Lithophaga nasuta (FOSSIL) † Australia, Western Australia, Exmouth
Leiosolenus nasuta (R.A. Philippi, 1846) South Africa, Natal22,8 mm
Mytilus nativus (FOSSIL) Kurushin, 1985 † Russia, Chekurovskiy Cape
Modiolus naviculoides (FOSSIL) C.M. Kolesnikov †
Modiolatus neglectus (T. Soot-Ryen, 1955) Japan
Lithophaga nelsoniana (FOSSIL) H.H. Suter, 1917 †
Amygdalum newcombi (W.H. Dall, P. Bartsch& H.A. Rehder, 1938) Hawaii
Modiolus nicklesi K.W. Ockelmann, 1983 Gulf of Guinea
Brachidontes niger (J.F. Gmelin, 1791)