HomeMarine aquarium fishAngelfish & butterflyfishArabian butterflyfish Arabian butterflyfish (Chaetodon melapterus) Scientific name: Chaetodon melapterus Guichenot, 1863 The Arabian butterflyfish (Chaetodon melapterus) is a marine fish of the family Chaetodontidae. BiologyDorsal spines (total): 13; Dorsal soft rays (total): 19-21; Anal spines: 3; Anal soft rays: 18 - 19Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChaetodon melapterusFamilyChaetodontidae (Butterflyfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length13.0EnvironmentMarine; reef-associatedClimateTropicalDistributionWestern Indian Ocean: Persian Gulf and Gulf of Oman; off the Red Sea coast of Yemen and other islands to the south. Although the type locality was stated to be Reunion and cited by several references as occurring there, it is probably erroneous; the species apparently does not occur in the Mascarenes.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More angelfish & butterflyfishPajama cardinalfishSphaeramia nematopteraJapanese butterflyfishChaetodon nipponGardner's butterflyfishChaetodon gardineriHawaiian gold-barred butterflyfishRoa excelsaBlack-spotted butterflyfishChaetodon nigropunctatusIndian golden-barred butterflyfishRoa jayakariSee all angelfish & butterflyfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026