HomeFish encyclopediaRay-finned fishesPuffers and FilefishesBoxfishesBluetail trunkfish Bluetail trunkfish (Ostracion cyanurus) Scientific name: Ostracion cyanurus R?ppell, 1828 The Bluetail trunkfish (Ostracion cyanurus) is a marine fish of the family Ostraciidae. Native range: Western Indian Ocean, Red Sea to the Persian Gulf. BiologyInhabits areas of moderate coral growth. Solitary and found close to shelter.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOstracion cyanurusFamilyOstraciidae (Boxfishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length15.0EnvironmentMarine; reef-associatedClimateTropicalDistributionWestern Indian Ocean: Red Sea to the Persian Gulf.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