,
Mytilus californianus on the Cornish coast near
Newquay (
Callovian)
Matmor Formation of southern
Israel , the
World Register of Marine Species accepts 32 genera split into eight subfamilies. ===Subfamily
Brachidontinae=== •
Brachidontes Swainson, 1840 •
Geukensia Van de Poel, 1959 •
Ischadium Jukes-Browne, 1905 •
Mytilaster Monterosato, 1883 ===Subfamily
Crenellinae=== • †
Arcoperna Conrad, 1865 •
Arcuatula Jousseaume, 1919 •
Arvella Scarlato, 1960 •
Choromytilus T. Soot-Ryen, 1952 •
Crenella T. Brown, 1827 •
Exosiperna Iredale, 1929 •
Musculus Röding, 1798 •
Mytella T. Soot-Ryen, 1955 •
Parabrachidontes K. S. Tan, S. H. M. Tan, Sanpanich, Duangdee & Ambarwati, 2024 •
Perna Philipsson, 1788 •
Rhomboidella Monterosato, 1884 • †
Semimodiola Cossmann, 1887 •
Solamen Iredale, 1924 •
Vilasina Scarlato, 1960 ===Subfamily
Dacrydiinae=== •
Dacrydium Torell, 1859 ===Subfamily
Lithophaginae=== •
Lithophaga Röding, 1798 ===Subfamily
Mytilinae=== •
Adula H. Adams & A. Adams, 1857 •
Crenomytilus T. Soot-Ryen, 1955 •
Dentimodiolus Iredale, 1939 •
Gregariella Monterosato, 1883 •
Mytilus Linnaeus, 1758 • †
Praemytilus F. W. Anderson & L. R. Cox, 1948 •
Trichomya Ihering, 1900 ===Subfamily
Mytiliseptinae=== •
Austromytilus Laseron, 1956 •
Mytilisepta T. Habe, 1951 •
Perumytilus Olsson, 1961 •
Semimytilus T. Soot-Ryen, 1955 ===Subfamily
Septiferinae=== •
Septifer Récluz, 1848 ===†Subfamily
Xenomytilinae=== • †
Lycettia L. R. Cox, 1937 • †
Xenomytilus Squires & Saul, 2006 ===
Incertae sedis=== • †
Admytilus Berezovsky, 2015 •
Amygdalum Megerle von Mühlfeld, 1811 • †
Arcomytilus Agassiz, 1842 • †
Assytilus Berezovsky, 2015 •
Aulacomya Mörch, 1853 • †
Cuneolus Stephenson, 1941 • †
Inoperna Conrad, 1873 • †
Limnolycettia C. M. Kolesnikov, 1980 • †
Mauricia G. D. Harris, 1919 • †
Mysidioptera Salomon, 1895 • †
Mytilosootus Stilwell & Zinsmeister, 1992 • †
Paramusculus Kadolsky, 1989 • †
Promytilus Newell, 1942 • †
Regulifer Fürsich & Werner, 1988 • †
Rhynchomytilus Rollier, 1914 • †
Samiolus Kiel & Taviani, 2017 •
Urumella Hayami & Kase, 1993 • †
Volsellina Newell, 1942 ==References==