HomeFish encyclopediaRay-finned fishesPerch-like fishThreefin blenniesTropical scaly-headed triplefin Tropical scaly-headed triplefin (Norfolkia brachylepis) Scientific name: Norfolkia brachylepis Schultz, 1960 The Tropical scaly-headed triplefin (Norfolkia brachylepis) is a marine fish of the family Tripterygiidae. Native range: Indo-West Pacific, Red Sea to Fiji, north to the Izu Islands, south to southwest and southeast Australia and New Calednonia. Recently recorded from Tonga. BiologyDorsal spines (total): 18; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 19. Heavily pigmented.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNorfolkia brachylepisFamilyTripterygiidae (Threefin blennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length7.3Depth range2–7 m (7–23 ft)EnvironmentMarine; reef-associated; depth range 2 - 7 mClimateTropicalDistributionIndo-West Pacific: Red Sea to Fiji, north to the Izu Islands, south to southwest and southeast Australia and New Calednonia. Recently recorded from Tonga.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceHigh, 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