HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBarbeled dragonfishesSmallhead snaggletooth Smallhead snaggletooth (Neonesthes microcephalus) Scientific name: Neonesthes microcephalus Norman, 1930 The Smallhead snaggletooth (Neonesthes microcephalus) is a marine fish of the family Stomiidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 8-9; Anal spines: 0; Anal soft rays: 21 - 24. Body black in color, often iridescent.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNeonesthes microcephalusFamilyStomiidae (Barbeled dragonfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length17.2Depth range600–1600 m (1969–5249 ft)EnvironmentMarine; bathypelagic; depth range 600 - 1600 mClimateDeep-waterDistributionEastern Atlantic: south of about 3?N, mostly south of 15?S. Across the south Atlantic between 15? and 40?S. One specimen known from 3?S-26?W. Also known from the southern Indian and west Pacific oceans and off Hawaii.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