HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBarbeled dragonfishesFangtooth dragonfish Fangtooth dragonfish (Melanostomias niger) Scientific name: Melanostomias niger Gilchrist & von Bonde, 1924 The Fangtooth dragonfish (Melanostomias niger) is a marine fish of the family Stomiidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 15-17; Anal spines: 0; Anal soft rays: 17 - 20Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMelanostomias nigerFamilyStomiidae (Barbeled dragonfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length26.0EnvironmentMarine; bathypelagicClimateDeep-waterDistributionEastern Indian Ocean: Australia. Southwest Pacific: New Zealand. Southeast Atlantic: Namibia to South Africa. Associated with the southern Subtropical Convergence. South Atlantic between 20? and 50?S and 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