1. Tribe Anisomysini Wittmann, Ariani & Lagardère, 2014
   1. Genus Anisomysis Hansen, 1910
   2. Genus Halemysis Bacescu & Udrescu, 1984
   3. Genus Idiomysis W. Tattersall, 1922
   4. Genus Mysidium Dana, 1852
   5. Genus Paramesopodopsis Fenton, 1985
2. Tribe Diamysini Wittmann, Ariani & Lagardère, 2014
   1. Genus Antromysis Creaser, 1936
   2. Genus Diamysis Czerniavsky, 1882
   3. Genus Gangemysis Derzhavin, 1924
   4. Genus Indomysis W. Tattersall, 1914
   5. Genus Limnomysis Czerniavsky, 1882
   6. Genus Parvimysis Brattegard, 1969
   7. Genus Surinamysis Bowman, 1977
   8. Genus Taphromysis Banner, 1953
3. Tribe Hemimysini Czerniavsky, 1882
   1. Genus Hemimysis G.O. Sars, 1869
4. Tribe Mysini Haworth, 1825
   1. Genus Antarctomysis Coutière, 1906
   2. Genus Arthromysis Colosi, 1924
   3. Genus Hyperstilomysis Fukuoka, Bravo & Murano, 2005
   4. Genus Kainommatomysis W. Tattersall, 1927
   5. Genus Mesopodopsis Czerniavsky, 1882
   6. Genus Mysis Latreille, 1802
   7. Genus Nanomysis W. Tattersall, 1921
   8. Genus Parastilomysis Ii, 1936
   9. Genus Stilomysis Norman, 1892
   10. Genus Tasmanomysis Fenton, 1985
5. Tribe Neomysini Wittmann, Ariani & Lagardère, 2014
   1. Genus Acanthomysis Czerniavsky, 1882
   2. Genus Alienacanthomysis Holmquist, 1981
   3. Genus Boreoacanthomysis Fukuoka & Murano, 2004
   4. Genus Columbiaemysis Holmquist, 1982
   5. Genus Disacanthomysis Holmquist, 1981
   6. Genus Exacanthomysis Holmquist, 1981
   7. Genus Hemiacanthomysis Fukuoka & Murano, 2002
   8. Genus Hippacanthomysis Murano & Chess, 1987
   9. Genus Holmesimysis Holmquist, 1979
   10. Genus Hyperacanthomysis Fukuoka & Murano, 2000
   11. Genus Lycomysis Hansen, 1910
   12. Genus Mesacanthomysis Nouvel, 1967
   13. Genus Neomysis Czerniavsky, 1882
   14. Genus Nipponomysis Takahashi & Murano, 1986
   15. Genus Notacanthomysis Fukuoka & Murano, 2000
   16. Genus Orientomysis Derzhavin, 1913
   17. Genus Pacifacanthomysis Holmquist, 1981
   18. Genus Paracanthomysis Ii, 1936
   19. Genus Proneomysis W. Tattersall, 1933
   20. Genus Telacanthomysis Fukuoka & Murano, 2001
   21. Genus Xenacanthomysis Holmquist, 1980
6. Tribe Paramysini Wittmann, Ariani & Daneliya, 2016
   1. Genus Caspiomysis G.O. Sars, 1907
   2. Genus Katamysis G.O. Sars, 1893
   3. Genus Paramysis Czerniavsky, 1882
   4. Genus Praunus Leach, 1814
   5. Genus Schistomysis Norman, 1892
7. Genus Arctomysis Hansen, 1887 accepted as Hansenomysis Stebbing, 1893
8. Genus Austromysis Czerniavsky, 1882 accepted as Paramysis Czerniavsky, 1882
9. Genus Dasymysis Holt & Beaumont, 1900 accepted as Acanthomysis Czerniavsky, 1882 (junior synonym)
10. Genus Javanisomysis Bacescu, 1992 accepted as Anisomysis (Javanisomysis) Bacescu, 1992
11. Genus Kainomatomysis W. Tattersall, 1927 accepted as Kainommatomysis W. Tattersall, 1927 (spelling variation)
12. Genus Macromysis White, 1847 accepted as Praunus Leach, 1814 (junior synonym)
13. Genus Megalophthalmus Leach, 1830 accepted as Mysis Latreille, 1802
14. Genus Mesomysis Czerniavsky, 1882 accepted as Paramysis (Mesomysis) Czerniavsky, 1882 (unaccepted > superseded rank)
15. Genus Mesomysis Norman, 1905 accepted as Michtheimysis Norman, 1902 accepted as Mysis Latreille, 1802 (unaccepted > junior homonym, not Mesomysis Czerniavsky, 1882)
16. Genus Metamysis G.O. Sars, 1895 accepted as Paramysis (Metamysis) G.O. Sars, 1895
17. Genus Metamysis Nakazawa, 1910 accepted as Orientomysis Derzhavin, 1913 (unaccepted > junior homonym, non Metamysis G.O. Sars, 1895)
18. Genus Michtheimysis Norman, 1902 accepted as Mysis Latreille, 1802 (unaccepted > junior subjective synonym, returned to synonymy)
19. Genus Podopsis J.V. Thompson, 1828 accepted as Mesopodopsis Czerniavsky, 1882
20. Genus Pontomysis Czerniavsky, 1882 accepted as Gastrosaccus Norman, 1868
21. Genus Potamomysis Czerniavsky, 1882 accepted as Diamysis Czerniavsky, 1882 (synonym)
22. Genus Pugetomysis Banner, 1948 accepted as Mysis Latreille, 1802
23. Genus Synmysis Czerniavsky, 1882 (accepted as Praunus and Schistomysis)
24. Genus Themisto Goodsir, 1842 accepted as Siriella Dana, 1850 (unaccepted > junior homonym, of Themisto Guérin, 1825 (Amphipoda))

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