HomeFish encyclopediaRay-finned fishesSmeltsSlickheadsLuminous slickhead Luminous slickhead (Aulastomatomorpha phospherops) Scientific name: Aulastomatomorpha phospherops Alcock, 1890 The Luminous slickhead (Aulastomatomorpha phospherops) is a marine fish of the family Alepocephalidae. Native range: Indo-West Pacific, Gulf of Oman, Arabian Sea, Bay of Bengal, and Coral Sea. BiologyDorsal soft rays (total): 21; Anal soft rays: 33 - 41; Vertebrae: 52. Head naked, covered with soft, tough skin. Cephalic lateralis system with 5 pores each in the supraorbital, preopercular, and mandibular series and 4 in posttemporal series. No trace of supratemporal commissure. Two pores joined by a short, dark canal on lachrymal on each side of snout above the maxillae. Snout elongate with upper jaw shorter than the lower jaw. Head narrow. Body with small, barely or non-imbricate scale pockets. Branchiostegal rays 5 (?). Pyloric caeca 4.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAulastomatomorpha phospheropsFamilyAlepocephalidae (Slickheads)OrderOsmeriformes (Smelts)ClassActinopterygii (Ray-finned fishes)Maximum length28.0Depth range1717–2020 m (5633–6627 ft)EnvironmentMarine; bathydemersal; depth range 1717 - 2020 mClimateDeep-waterDistributionIndo-West Pacific: Gulf of Oman, Arabian Sea, Bay of Bengal, and Coral Sea.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