HomeFish encyclopediaRay-finned fishesPerch-like fishCutlassfishesSimony's frostfish Simony's frostfish (Benthodesmus simonyi) Scientific name: Benthodesmus simonyi Steindachner, 1891 The Simony's frostfish (Benthodesmus simonyi) is a marine fish of the family Trichiuridae. Native range: North Atlantic, off Newfoundland (Canada), Bermuda, New England (USA), Middle Atlantic Ridges, Iceland, Norway, Portugal, Madeira, and Canary Islands. BiologyDorsal spines (total): 44 - 46; Dorsal soft rays (total): 104-109; Anal spines: 2; Anal soft rays: 93 - 102; Vertebrae: 153 - 158. 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 simonyiFamilyTrichiuridae (Cutlassfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length130Depth range200–900 m (656–2953 ft)EnvironmentMarine; benthopelagic; depth range 200 - 900 mClimateDeep-waterDistributionNorth Atlantic: off Newfoundland (Canada), Bermuda, New England (USA), Middle Atlantic Ridges, Iceland, Norway, Portugal, Madeira, and Canary Islands.Conservation 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