Definition of pearl perch in English:

pearl perch

noun

  • An edible marine percoid fish, Glaucosoma scapulare (family Glaucosomidae), of the coastal waters of eastern Australia, having a pearl-like bone above the operculum which is easily exposed by rubbing off its covering of skin.

Origin

Late 19th century; earliest use found in Proceedings of the Linnean Society of New South Wales.