HomeFish encyclopediaRay-finned fishesPerch-like fishDamselfishesBarhead damsel Barhead damsel (Neoglyphidodon thoracotaeniatus) Scientific name: Neoglyphidodon thoracotaeniatus Fowler & Bean, 1928 The Barhead damsel (Neoglyphidodon thoracotaeniatus) is a marine fish of the family Pomacentridae. Native range: Western Central Pacific, Indonesia, the Philippines, New Guinea, and the Solomon Islands. BiologyDorsal spines (total): 13; Dorsal soft rays (total): 12-14; Anal spines: 2; Anal soft rays: 13 - 14. Juveniles dark posteriorly with large black ocellus at mid-base of dorsal fin, on large adults, bars on head become brown and lower anal fin becomes yellow. Small juveniles bright yellow with black band, gradually changes to an all black posterior body when adult.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNeoglyphidodon thoracotaeniatusFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length11.0Depth range14–45 m (46–148 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 14 - 45 mClimateTropicalDistributionWestern Central Pacific: Indonesia, the Philippines, New Guinea, and the Solomon Islands.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