HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsRockfishes, rockcods and thornyheadsAtlantic thornyhead Atlantic thornyhead (Trachyscorpia cristulata cristulata) Scientific name: Trachyscorpia cristulata cristulata Goode & Bean, 1896 The Atlantic thornyhead (Trachyscorpia cristulata cristulata) is a marine fish of the family Sebastidae. Native range: Western Atlantic, Massachusetts and northern Gulf of Mexico to southern Florida in USA. BiologyAnterolateral glandular grooves with venom gland.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTrachyscorpia cristulata cristulataFamilySebastidae (Rockfishes, rockcods and thornyheads)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length50.0Depth range130–1100 m (427–3609 ft)EnvironmentMarine; demersal; depth range 130 - 1100 mClimateSubtropicalDistributionWestern Atlantic: Massachusetts and northern Gulf of Mexico to southern Florida in USA.Conservation status (IUCN)Not EvaluatedThreat to humansVenomousResilienceVery Low, minimum population doubling time more than 14 years (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