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Wiktionary
morwong

n. Any of various perciform fishes comprising the family ''(taxlink Cheilodactylidae family noshow=1)''.

Wikipedia
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.