HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsRidge scaled rattail Ridge scaled rattail (Macrourus carinatus) Scientific name: Macrourus carinatus G?nther, 1878 The Ridge scaled rattail (Macrourus carinatus) is a marine fish of the family Macrouridae. BiologyA benthic species found on the continental slope. This species is being imported and sold to the United States by the Argentines under the name grenadero.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMacrourus carinatusFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Maximum length100.0Depth range200–1200 m (656–3937 ft)EnvironmentMarine; bathydemersal; non-migratory; depth range 200 - 1200 m, usually 500 - 800 mClimateDeep-waterDistributionSouthern Atlantic, Indian and Pacific: Subantarctic to temperate waters on both sides of South America, Falkland Islands, Discovery Tablemount and Meteor Seamount, South Africa, off Crozet and Prince Edward Islands, and off New Zealand and Macquarie Island.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceLow, minimum population doubling time 4.5 - 14 years (tmax=19) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026