HomeFish encyclopediaRay-finned fishesPuffers and FilefishesBoxfishesSmooth trunkfish Smooth trunkfish (Rhinesomus triqueter) Scientific name: Rhinesomus triqueter Linnaeus, 1758 The Smooth trunkfish (Rhinesomus triqueter) is a marine fish of the family Ostraciidae. Native range: Western Atlantic, Canada and Massachusetts, USA to Brazil, including Bermuda, the Gulf of Mexico and the Caribbean. BiologyCarapace and caudal peduncle blackish with numerous small white spots; lips and bases of fins blackish; terminal edge of caudal fin narrowly white with a blackish submarginal band.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameRhinesomus triqueterFamilyOstraciidae (Boxfishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length47.0Common length20.0Depth range50 m (164 ft)EnvironmentMarine; reef-associated; depth range ? - 50 mClimateSubtropicalDistributionWestern Atlantic: Canada and Massachusetts, USA to Brazil, including Bermuda, the Gulf of Mexico and the Caribbean.Conservation status (IUCN)Not EvaluatedThreat to humansReports of ciguatera poisoningUsesFisheries: minor commercial; aquarium: commercialResilienceHigh, 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