HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBristlemouthsAtlantic fangjaw Atlantic fangjaw (Gonostoma atlanticum) Scientific name: Gonostoma atlanticum Norman, 1930 The Atlantic fangjaw (Gonostoma atlanticum) is a marine fish of the family Gonostomatidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 16-18; Anal spines: 0; Anal soft rays: 26 - 31. Dark dorsally, silvery finish on translucent flanks; fin rays colorless; black pigment at base of each dorsal and anal ray. Branchiostegal rays: 11-12. Longer trunk and shorter tail.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGonostoma atlanticumFamilyGonostomatidae (Bristlemouths)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length6.6Depth range50–1352 m (164–4436 ft)EnvironmentMarine; bathypelagic; depth range 50 - 1352 mClimateDeep-waterDistributionWorldwide. Eastern Atlantic: Madeira, Canary Islands and Cape Verde; Senegal to Gulf of Guinea. Western Atlantic and Indo-Pacific: in tropical and subtropical waters, including the Gulf of Mexico. Eastern Pacific: California Current region. South China Sea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceHigh, 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