HomeMarine aquarium fishWrassesRegal parrot Regal parrot (Scarus dubius) Scientific name: Scarus dubius Bennett, 1828 The Regal parrot (Scarus dubius) is a marine fish of the family Scaridae. Native range: Eastern Central Pacific, found only in the Hawaiian Islands. Occurrences outside Hawaii are all misidentifications. BiologyInhabits seaward reefs. Benthopelagic. Grazes on benthic algae. Protogynous.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameScarus dubiusFamilyScaridae (Parrotfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length35.6Depth range1–20 m (3–66 ft)EnvironmentMarine; reef-associated; depth range 1 - 20 mClimateTropicalDistributionEastern Central Pacific: found only in the Hawaiian Islands. Occurrences outside Hawaii are all misidentifications.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More wrassesYellowfin parrotfishScarus flavipectoralisGlobehead parrotfishScarus globicepsSingapore parrotfishScarus prasiognathosYellowband parrotfishScarus schlegeliBleeker's parrotfishChlorurus bleekeriPalecheek parrotfishChlorurus japanensisSee all wrasses SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026