HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBarbeled dragonfishesBlack dragonfish Black dragonfish (Idiacanthus atlanticus) Scientific name: Idiacanthus atlanticus Brauer, 1906 The Black dragonfish (Idiacanthus atlanticus) is a marine fish of the family Stomiidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 55-63; Anal spines: 0; Anal soft rays: 37 - 42. Pelvic fins with 6 rays (females), absent in males.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameIdiacanthus atlanticusFamilyStomiidae (Barbeled dragonfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length53.0Depth range1239–2000 m (4065–6562 ft)EnvironmentMarine; bathypelagic; depth range 1239 - 2000 mClimateDeep-waterDistributionSubtropical to temperate waters in the southern hemisphere, probably limited by the subtropical convergence. Incidentally found in sub-Antarctic waters of the Southern 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