HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsRichard's whiptail Richard's whiptail (Sphagemacrurus richardi) Scientific name: Sphagemacrurus richardi Weber, 1913 The Richard's whiptail (Sphagemacrurus richardi) is a marine fish of the family Macrouridae. Native range: Indo-West Pacific, Natal, South Africa and Indonesia. BiologyA benthic species found on the continental slope.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSphagemacrurus richardiFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Depth range538–1260 m (1765–4134 ft)EnvironmentMarine; bathypelagic; depth range 538 - 1260 mClimateDeep-waterDistributionIndo-West Pacific: Natal, South Africa and Indonesia.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