HomeFish encyclopediaRay-finned fishesPuffers and FilefishesFilefishesLesser-spotted leatherjacket Lesser-spotted leatherjacket (Thamnaconus hypargyreus) Scientific name: Thamnaconus hypargyreus Cope, 1871 The Lesser-spotted leatherjacket (Thamnaconus hypargyreus) is a marine fish of the family Monacanthidae. Native range: Indo-West Pacific, northwestern Australia. BiologyOccurs in the sublittoral zone on sand bottoms.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameThamnaconus hypargyreusFamilyMonacanthidae (Filefishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length17.8EnvironmentMarine; demersalClimateTropicalDistributionIndo-West Pacific: northwestern Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (K=0.4) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026