HomeFish encyclopediaRay-finned fishesSmeltsBarreleyes or spookfishesBinocular fish Binocular fish (Winteria telescopa) Scientific name: Winteria telescopa Brauer, 1901 The Binocular fish (Winteria telescopa) is a marine fish of the family Opisthoproctidae. Native range: Eastern Atlantic, Gulf of Guinea. Western Pacific: Japan, Australia, and New Zealand. Reported from the Hawaiian Archipelago. Tropical Indian Ocean. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 8-9; Anal spines: 0; Anal soft rays: 7 - 9. Dark blue-black with silvery reflections on head.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameWinteria telescopaFamilyOpisthoproctidae (Barreleyes or spookfishes)OrderOsmeriformes (Smelts)ClassActinopterygii (Ray-finned fishes)Maximum length15.0Depth range400–2500 m (1312–8202 ft)EnvironmentMarine; bathypelagic; depth range 400 - 2500 m, usually 500 - 700 mClimateDeep-waterDistributionEastern Atlantic: Gulf of Guinea. Western Pacific: Japan, Australia, and New Zealand. Reported from the Hawaiian Archipelago. Tropical Indian Ocean.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