• Admytilus Berezovsky, 2015 †
• Adula H. Adams & A. Adams, 1857
• Amygdalum Megerle von Mühlfeld, 1811
• Arcomytilus Agassiz, 1842 †
• Arcoperna Conrad, 1865 †
• Arcuatula Jousseaume, 1919
• Arvella Scarlato, 1960
• Assytilus Berezovsky, 2015 †
• Aulacomya Mörch, 1853
• Austromytilus Laseron, 1956
• Botulina Dall, 1889 accepted as Gregariella Monterosato, 1883
• Brachidontes Swainson, 1840
• Brachiodontes accepted as Brachidontes Swainson, 1840
• Brachydontes [sic] accepted as Brachidontes Swainson, 1840
• Brachyodon Jukes-Browne, 1905 accepted as Brachidontes Swainson, 1840
• Brachyodontes Herrmannsen, 1846 accepted as Brachidontes Swainson, 1840
• Byssogerdius K.-S. Tan, S. H-N. Tan, Sanpanich, Duangdee & Ambarwati, 2021 accepted as Dentimodiolus Iredale, 1939
• Choromytilus T. Soot-Ryen, 1952
• Crenella T. Brown, 1827
• Crenomytilus T. Soot-Ryen, 1955
• Cuneolus Stephenson, 1941 †
• Dacridium [sic] accepted as Dacrydium Torell, 1859
• Dacrydium Torell, 1859
• Dentimodiolus Iredale, 1939
• Eumytilus Ihering, 1900 accepted as Mytilus Linnaeus, 1758
• Exosiperna Iredale, 1929
• Geukensia Van de Poel, 1959
• Gregariella Monterosato, 1883
• Hippagus I. Lea, 1833 accepted as Crenella T. Brown, 1827
• Hormomya Mörch, 1853 accepted as Brachidontes Swainson, 1840
• Inoperna Conrad, 1873 †
• Ischadium Jukes-Browne, 1905
• Lamya T. Soot-Ryen, 1958 accepted as Arcuatula Jousseaume, 1919
• Lanistes Swainson, 1840 accepted as Musculus Röding, 1798
• Lanistina J. E. Gray, 1847 accepted as Musculus Röding, 1798
• Lecompteus Van de Poel, 1959 † (uncertain > unassessed)
• Limnolycettia C. M. Kolesnikov, 1980 †
• Lithodomus Cuvier, 1816 accepted as Lithophaga Röding, 1798
• Lithophaga Röding, 1798
• Lithophagus [sic] accepted as Lithophaga Röding, 1798
• Lycettia L. R. Cox, 1937 †
• Lythodomus accepted as Lithophaga Röding, 1798
• Mauricia G. D. Harris, 1919 †
• Megacrenella T. Habe & Ki. Ito, 1965 accepted as Solamen Iredale, 1924
• Mitylus accepted as Mytilus Linnaeus, 1758
• Modiella Monterosato, 1884 accepted as Amygdalum Megerle von Mühlfeld, 1811
• Modiolarca J. E. Gray, 1842 accepted as Musculus (Modiolarca) J. E. Gray, 1842 represented as Musculus Röding, 1798
• Modiolaria Lovén, 1846 accepted as Musculus Röding, 1798
• Musculista G. Yamamoto & T. Habe, 1958 accepted as Arcuatula Jousseaume, 1919
• Musculus Röding, 1798
• Myoparo I. Lea, 1833 accepted as Crenella T. Brown, 1827
• Mysidioptera Salomon, 1895 †
• Mytella T. Soot-Ryen, 1955
• Mytilaster Monterosato, 1883
• Mytilisepta T. Habe, 1951
• Mytilites [sic] † accepted as Mytulites Schlotheim, 1813 † accepted as Mytilus Linnaeus, 1758
• Mytilodonta Coen, 1935 accepted as Mytilaster Monterosato, 1883
• Mytilops J. Hall, 1883 † (uncertain > unassessed)
• Mytilosootus Stilwell & Zinsmeister, 1992 †
• Mytilus Linnaeus, 1758
• Mytulites Schlotheim, 1813 † accepted as Mytilus Linnaeus, 1758
• Mytulus [sic] accepted as Mytilus Linnaeus, 1758
• Nuculocardia A. d'Orbigny, 1853 accepted as Crenella T. Brown, 1827
• Pacifimytilus Kafanov, 1984 accepted as Mytilus Linnaeus, 1758
• Parabrachidontes K. S. Tan, S. H. M. Tan, Sanpanich, Duangdee & Ambarwati, 2024
• Paramusculus Kadolsky, 1989 †
• Perna Philipsson, 1788
• Perumytilus Olsson, 1961
• Plicatomytilus Allison & Addicott, 1976 † accepted as Mytilus (Plicatomytilus) Allison & Addicott, 1976 † represented as Mytilus Linnaeus, 1758
• Porubites Řehoř, 1966 †
• Praemytilus F. W. Anderson & L. R. Cox, 1948 †
• Promytilus Newell, 1942 †
• Propetilus Iredale, 1937 accepted as Gregariella Monterosato, 1883
• Quendreda Soot-Ryen, 1955 accepted as Dacrydium (Quendreda) T. Soot-Ryen, 1955 accepted as Dacrydium Torell, 1859
• Regulifer Fürsich & Werner, 1988 †
• Retites Řehoř, 1965 † accepted as Porubites Řehoř, 1966 †
• Rhomboidella Monterosato, 1884
• Rhynchomytilus Rollier, 1914 †
• Ryenella C. A. Fleming, 1959 accepted as Musculus (Modiolarca) J. E. Gray, 1842 represented as Musculus Röding, 1798
• Samiolus Kiel & Taviani, 2017 †
• Scolimytilus Olsson, 1961 accepted as Brachidontes Swainson, 1840
• Semimodiola Cossmann, 1887 †
• Semimytilus T. Soot-Ryen, 1955
• Septifer Récluz, 1848
• Solamen Iredale, 1924
• Stalagmium Conrad, 1833 † accepted as Crenella T. Brown, 1827
• Tibialectus Iredale, 1939 accepted as Gregariella Monterosato, 1883
• Trichomusculus Iredale, 1924 accepted as Gregariella Monterosato, 1883
• Trichomya Ihering, 1900
• Urumella Hayami & Kase, 1993
• Vilasina Scarlato, 1960
• Volsellina Newell, 1942 †
• Xenomytilus Squires & Saul, 2006 †