HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsBlackmouth rat tail Blackmouth rat tail (Gadomus introniger) Scientific name: Gadomus introniger Gilbert & Hubbs, 1920 The Blackmouth rat tail (Gadomus introniger) is a marine fish of the family Macrouridae. Native range: Western Central Pacific, Australia, Philippines and the East Indies. BiologyA benthic species found on the continental shelf.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGadomus intronigerFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Depth range549–1281 m (1801–4203 ft)EnvironmentMarine; bathydemersal; depth range 549 - 1281 mClimateDeep-waterDistributionWestern Central Pacific: Australia, Philippines and the East Indies.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