HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBarbeled dragonfishesAlcock's boafish Alcock's boafish (Stomias nebulosus) Scientific name: Stomias nebulosus Alcock, 1889 The Alcock's boafish (Stomias nebulosus) is a marine fish of the family Stomiidae. Native range: Indo-Pacific, occurs in tropical and subtropical waters. South China Sea. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 15-20; Anal spines: 0; Anal soft rays: 18 - 26. Body iridescent silver in color.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameStomias nebulosusFamilyStomiidae (Barbeled dragonfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length18.0Depth range640–730 m (2100–2395 ft)EnvironmentMarine; bathypelagic; depth range 640 - 730 mClimateDeep-waterDistributionIndo-Pacific: occurs in tropical and subtropical waters. South China Sea.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