HomeFish encyclopediaRay-finned fishesPuffers and FilefishesFilefishesHair-finned filefish Hair-finned filefish (Paramonacanthus oblongus) Scientific name: Paramonacanthus oblongus Temminck & Schlegel, 1850 The Hair-finned filefish (Paramonacanthus oblongus) is a marine fish of the family Monacanthidae. Native range: Indo-Pacific. BiologyOccurs over reefs and sand bottom. Feeds on small invertebrates.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameParamonacanthus oblongusFamilyMonacanthidae (Filefishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length7.8EnvironmentMarine; demersalClimateTropicalDistributionIndo-Pacific.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, 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