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morwong
Morwongs (also called butterfish, fingerfins, jackassfish, snappers, and moki) are perciform fishes comprising the family Cheilodactylidae. Most of the about 27 species are found in temperate and subtropical oceans in the Southern Hemisphere, but three (''Cheilodactylus quadricornis'', ''C. zebra'' and ''C. zonatus'') are restricted to northwest Pacific off Japan and China, and ''C. vittatus'' is restricted to Hawaii.
Morwong is also used as a name for several unrelated fish found in Australian waters, such as the painted sweetlips, ''Diagramma pictum''.
== Taxonomy ==
Several issues are yet to be resolved in the taxonomy of this family; at a higher level, the traditional delimitation of this family and Latridae is based on morphological differences, but the reliability of these differences has been questioned, and genetics do not support this treatment, either, leading some to suggest the majority should be in Latridae.〔Burridgea and Smolenski (2004). ''Molecular phylogeny of the Cheilodactylidae and Latridae (Perciformes: Cirrhitoidea) with notes on taxonomy and biogeography.'' Molecular Phylogenetics and Evolution 30: 118–127〕〔Randall (2007). Reef and Shore Fishes of the Hawaiian Islands. ISBN 1-929054-03-3〕 Based on this, the only species that should remain in the family Cheilodactylidae are the relatively small ''Cheilodactylus fasciatus'' and ''C. pixi'' from southern Africa.〔 This also means the broader definition of the genus ''Cheilodactylus'' is polyphyletic.〔〔Burridge and White (2000). ''Molecular phylogeny of the antitropical subgenus Goniistius (Perciformes: Cheilodactylidae: Cheilodactylus): evidence for multiple transequatorial divergences and non-monophyly.'' Biological Journal of the Linnean Society 70: 435–458.〕 One suggested solution has been to leave about half the species in ''Cheilodactylus'' and move the remaining half to ''Goniistius'',〔 but this relatively simple proposal does not take the extreme divergence of ''C. fasciatus'' and ''C. pixi'' into account.〔 All other "''Cheilodactylus''" species clearly do not belong with these two in ''Cheilodactylus'' and instead appear to belong in several different genera (only one of which is ''Goniistius''), but how many and their exact delimitation is not clear at present.〔
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