HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBarbeled dragonfishesTwinlobe snaggletooth Twinlobe snaggletooth (Astronesthes bilobatus) Scientific name: Astronesthes bilobatus Parin & Borodulina, 1996 The Twinlobe snaggletooth (Astronesthes bilobatus) is a marine fish of the family Stomiidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 14-17; Anal spines: 0; Anal soft rays: 12 - 16; Vertebrae: 43 - 46. Last photophore of VAL series behind origin of anal and last photophore of VAV series. Aggregation of luminous tissue on head, when fully developed fish > 10 cm SL, forming transverse bar across gill cover; longitudinally oriented aggregations of luminous tubercle-like spots on body behind head and above pelvic fins. In immature fish 27676).Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAstronesthes bilobatusFamilyStomiidae (Barbeled dragonfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length20.8Depth range50–2230 m (164–7316 ft)EnvironmentMarine; bathypelagic; depth range 50 - 2230 mClimateDeep-waterDistributionIndo-Pacific: Its range seems to represent the equatorial distributional pattern; it expands southwards in the western parts of the Pacific (including the Philippine Sea, ), and Indian oceans; absent in the eastern part. Atlantic Ocean: Present in a small portion near southern Africa.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