HomeFish encyclopediaRay-finned fishesGrinnersWaryfishesSmallscale waryfish Smallscale waryfish (Scopelosaurus hamiltoni) Scientific name: Scopelosaurus hamiltoni Waite, 1916 The Smallscale waryfish (Scopelosaurus hamiltoni) is a marine fish of the family Notosudidae. Native range: Atlantic, Indian and Pacific, in sub-Antarctic areas. Not known from the Southeast Pacific. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 10-13; Anal spines: 0; Anal soft rays: 18 - 21. Dark brownish to blackish in color; paler below with no silvery scales; when specimen is without scales, an indistinct blackish anal spot of the peritoneum showing through the skin may be observed.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameScopelosaurus hamiltoniFamilyNotosudidae (Waryfishes)OrderAulopiformes (Grinners)ClassActinopterygii (Ray-finned fishes)Maximum length50.0Depth range1000 m (3281 ft)EnvironmentMarine; benthopelagic; oceanodromous; depth range ? - 1000 mClimateTemperateDistributionAtlantic, Indian and Pacific: in sub-Antarctic areas. Not known from the Southeast Pacific.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceMedium, 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