HomeFish encyclopediaRay-finned fishesPerch-like fishCutlassfishesCrested hairtail Crested hairtail (Tentoriceps cristatus) Scientific name: Tentoriceps cristatus Klunzinger, 1884 The Crested hairtail (Tentoriceps cristatus) is a marine fish of the family Trichiuridae. BiologyDorsal spines (total): 5; Dorsal soft rays (total): 126-144; Anal spines: 2; Anal soft rays: 47 - 50. Body extremely elongate, compressed and tapering to a point. Pelvic fins reduced to scale-like processes; caudal fin absent. Lateral line running almost straight mid laterally nearer the ventral than the dorsal contour. Color is silvery white becoming silvery gray with dark cloud-like patches after death.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTentoriceps cristatusFamilyTrichiuridae (Cutlassfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length90.0Common length50.0Depth range30–110 m (98–361 ft)EnvironmentMarine; benthopelagic; depth range 30 - 110 mClimateTropicalDistributionIndo-West Pacific: Red Sea, Mozambique Channel, Saya de Malha Bank, Chagos Islands, Andaman Sea, northern and southeastern Australia, South China Sea, East China Sea, Tasman Sea, Philippines, and southern Japan.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, 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