HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsCodheaded rattail Codheaded rattail (Bathygadus cottoides) Scientific name: Bathygadus cottoides G?nther, 1878 The Codheaded rattail (Bathygadus cottoides) is a marine fish of the family Macrouridae. Native range: Southern Atlantic, Indian and Pacific, Mozambique to New Zealand. BiologyA benthic species which occurs in the continental slope.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBathygadus cottoidesFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Maximum length24.0Depth range1000–1600 m (3281–5249 ft)EnvironmentMarine; bathydemersal; depth range 1000 - 1600 mClimateDeep-waterDistributionSouthern Atlantic, Indian and Pacific: Mozambique to New Zealand.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 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