HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBarbeled dragonfishesValdivia black dragon fish Valdivia black dragon fish (Melanostomias valdiviae) Scientific name: Melanostomias valdiviae Brauer, 1902 The Valdivia black dragon fish (Melanostomias valdiviae) is a marine fish of the family Stomiidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 12-16; Anal spines: 0; Anal soft rays: 17 - 19. Body elongate and moderately slender. Short, blunt and non-protrusible snout. Short chin barbel with short terminal expanded section. Black in color. Barbel is black, tip of barbel unpigmented.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMelanostomias valdiviaeFamilyStomiidae (Barbeled dragonfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length24.1Depth range40–1600 m (131–5249 ft)EnvironmentMarine; bathypelagic; depth range 40 - 1600 mClimateDeep-waterDistributionEastern Atlantic: between 41?N and 28?N, one record at about 30?N, 18?W, and west of South Africa. Western Atlantic: between 41?N and 28?N, Gulf of Mexico, and south to 8?N; then between 10?S and 18?S. Northwest Atlantic: Canada. Also Indian and Pacific oceans.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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