HomeFish encyclopediaRay-finned fishesPerch-like fishCutlassfishesElongate frostfish Elongate frostfish (Benthodesmus elongatus) Scientific name: Benthodesmus elongatus Clarke, 1879 The Elongate frostfish (Benthodesmus elongatus) is a marine fish of the family Trichiuridae. BiologyJuveniles mesopelagic; also benthopelagic. Feeds on crustaceans (mainly prawns and euphausiids), small fishes (e.g. Maurolicus) and squid. Minimum depth reported from.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBenthodesmus elongatusFamilyTrichiuridae (Cutlassfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length100.0Depth range178–950 m (584–3117 ft)EnvironmentMarine; benthopelagic; depth range 178 - 950 mClimateDeep-waterDistributionAtlantic, Indian and Pacific: off south Brazil and Argentina, Rio Grande Rise, southeastern Africa, Madagascar Ridge, southeastern Australia, New Zealand, Sala y Gomez Ridge.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (tm=5-6) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026