HomeFish encyclopediaRay-finned fishesPerch-like fishMedusafishesBlackspot butterfish Blackspot butterfish (Psenopsis humerosa) Scientific name: Psenopsis humerosa Munro, 1958 The Blackspot butterfish (Psenopsis humerosa) is a marine fish of the family Centrolophidae. Native range: Western Central Pacific, Australia to New Guinea and eastern Indonesia. BiologyFound in oceanic waters and well offshore. Biology unknown; maximum size unknown, probably reaching 20 cm FLSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePsenopsis humerosaFamilyCentrolophidae (Medusafishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length20.0EnvironmentMarine; pelagic-oceanicClimateTropicalDistributionWestern Central Pacific: Australia to New Guinea and eastern Indonesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, minimum population doubling time less than 15 months (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