HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsLongbarb whiptail Longbarb whiptail (Hymenocephalus longibarbis) Scientific name: Hymenocephalus longibarbis G?nther, 1887 The Longbarb whiptail (Hymenocephalus longibarbis) is a marine fish of the family Macrouridae. Native range: Indo-West Pacific, northwestern Australia. BiologyA benthic species found on the continental slope.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHymenocephalus longibarbisFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Depth range430–920 m (1411–3018 ft)EnvironmentMarine; benthopelagic; depth range 430 - 920 mClimateDeep-waterDistributionIndo-West Pacific: northwestern Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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