HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBarbeled dragonfishesThree-ray dragonfish Three-ray dragonfish (Melanostomias pauciradius) Scientific name: Melanostomias pauciradius Matsubara, 1938 The Three-ray dragonfish (Melanostomias pauciradius) is a marine fish of the family Stomiidae. Native range: Western Pacific. BiologyDorsal soft rays (total): 15-16; Anal soft rays: 18 - 20. Remarks: Distal end of barbel extremely compressed, membranous, with many luminous bodies.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMelanostomias pauciradiusFamilyStomiidae (Barbeled dragonfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)EnvironmentMarine; bathypelagicClimateDeep-waterDistributionWestern Pacific.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