HomeFish encyclopediaRay-finned fishesPerch-like fishCutlassfishesBigeye frostfish Bigeye frostfish (Benthodesmus macrophthalmus) Scientific name: Benthodesmus macrophthalmus Parin & Becker, 1970 The Bigeye frostfish (Benthodesmus macrophthalmus) is a marine fish of the family Trichiuridae. Native range: Indo-Pacific, East Timor, Indonesia, Papua New Guinea and Australia. BiologyDorsal spines (total): 34 - 37; Dorsal soft rays (total): 78-85; Anal spines: 2; Anal soft rays: 70 - 76; Vertebrae: 119 - 124. Body silvery, jaws and opercle blackish. The inside of the mouth and gill cavities black.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBenthodesmus macrophthalmusFamilyTrichiuridae (Cutlassfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length50.0Depth range320–600 m (1050–1969 ft)EnvironmentMarine; benthopelagic; depth range 320 - 600 mClimateDeep-waterDistributionIndo-Pacific: East Timor, Indonesia, Papua New Guinea and AustraliaConservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Assuming tmax>10) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026