HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsBlackfin rat tail Blackfin rat tail (Bathygadus furvescens) Scientific name: Bathygadus furvescens Alcock, 1894 The Blackfin rat tail (Bathygadus furvescens) is a marine fish of the family Macrouridae. Native range: Indian Ocean, Gulf of Aden and Maldives. BiologyA benthic species found on the continental slope.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBathygadus furvescensFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Maximum length36.0Depth range797–1295 m (2615–4249 ft)EnvironmentMarine; bathypelagic; depth range 797 - 1295 mClimateDeep-waterDistributionIndian Ocean: Gulf of Aden and Maldives.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