HomeFish encyclopediaRay-finned fishesPuffers and FilefishesBoxfishesRoughskin trunkfish Roughskin trunkfish (Ostracion trachys) Scientific name: Ostracion trachys Randall, 1975 The Roughskin trunkfish (Ostracion trachys) is a marine fish of the family Ostraciidae. Native range: Western Indian Ocean, Mauritius and Reunion. BiologyA secretive species found in holes and crevices in rocky seaward reefs.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOstracion trachysFamilyOstraciidae (Boxfishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length11.0Depth range15–30 m (49–98 ft)EnvironmentMarine; reef-associated; depth range 15 - 30 mClimateTropicalDistributionWestern Indian Ocean: Mauritius and Reunion.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Fec assumed to be > 10,000) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026