HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBarbeled dragonfishesObese dragonfish Obese dragonfish (Opostomias micripnus) Scientific name: Opostomias micripnus G?nther, 1878 The Obese dragonfish (Opostomias micripnus) is a marine fish of the family Stomiidae. Native range: Circumglobal, In subtropical waters; southern hemisphere. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 21-23; Anal spines: 0; Anal soft rays: 22 - 24Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOpostomias micripnusFamilyStomiidae (Barbeled dragonfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length50.0EnvironmentMarine; bathypelagicClimateDeep-waterDistributionCircumglobal: In subtropical waters; southern hemisphere.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, 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