HomeFish encyclopediaRay-finned fishesPuffers and FilefishesTriplespinesBlack-flag tripodfish Black-flag tripodfish (Tripodichthys angustifrons) Scientific name: Tripodichthys angustifrons Hollard, 1854 The Black-flag tripodfish (Tripodichthys angustifrons) is a marine fish of the family Triacanthidae. Native range: Western Central Pacific, known only from Australia (including northwestern Australia) and Indonesia. BiologyDorsal soft rays (total): 22-24; Anal soft rays: 18 - 19. Spiny dorsal-fin membrane very dark between second spine and base of first spine, and often between second and third spines (Ref 9804).Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTripodichthys angustifronsFamilyTriacanthidae (Triplespines)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Depth range15 m (49 ft)EnvironmentMarine; demersal; depth range ? - 15 mClimateTropicalDistributionWestern Central Pacific: known only from Australia (including northwestern Australia) and Indonesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: subsistence fisheriesResilienceMedium, 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