HomeFish encyclopediaRay-finned fishesPerch-like fishMorwongsPlessis' morwong Plessis' morwong (Cheilodactylus plessisi) Scientific name: Cheilodactylus plessisi Randall, 1983 The Plessis' morwong (Cheilodactylus plessisi) is a marine fish of the family Cheilodactylidae. Native range: Eastern Pacific, Ilots de Bass, Rapa and Easter Island. BiologyInhabits rocky bottoms and adjacent sandy areas.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCheilodactylus plessisiFamilyCheilodactylidae (Morwongs)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length43.0Depth range0–22 m (0–72 ft)EnvironmentMarine; reef-associated; depth range 0 - 22 mClimateSubtropicalDistributionEastern Pacific: Ilots de Bass, Rapa and Easter Island.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026