HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBarbeled dragonfishesTriplethread snaggletooth Triplethread snaggletooth (Astronesthes trifibulatus) Scientific name: Astronesthes trifibulatus Gibbs, Amaoka & Haruta, 1984 The Triplethread snaggletooth (Astronesthes trifibulatus) is a marine fish of the family Stomiidae. Native range: Indo-Pacific, in tropical and subtropical waters, including the northwestern Pacific Trough. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 11-14; Anal spines: 0; Anal soft rays: 18 - 21; Vertebrae: 54 - 56. Body black; large specimens may have pale luminous patches around postorbital organ.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAstronesthes trifibulatusFamilyStomiidae (Barbeled dragonfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length15.0Depth range0–670 m (0–2198 ft)EnvironmentMarine; bathypelagic; depth range 0 - 670 mClimateDeep-waterDistributionIndo-Pacific: in tropical and subtropical waters, including the northwestern Pacific Trough.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026