HomeFish encyclopediaRay-finned fishesPuffers and FilefishesFilefishesFan-bellied leatherjacket Fan-bellied leatherjacket (Monacanthus chinensis) Scientific name: Monacanthus chinensis Osbeck, 1765 The Fan-bellied leatherjacket (Monacanthus chinensis) is a marine fish of the family Monacanthidae. Native range: Indo-Pacific, Malaysia and Indonesia to Samoa, north to southern Japan, south to northwestern Australia and New South Wales. BiologyInhabits estuaries and on coastal and offshore reefs; also on weed bottoms and on trawling grounds. Found on muddy or silty substrates. Is an omnivore which feeds mainly on seagrass, algae, gammarid amphipods and caridean shrimps as well as on bryozoans, hydroids, ascidians, copepods, caprellid amphipods and tanaidaceans.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMonacanthus chinensisFamilyMonacanthidae (Filefishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length38.0Depth range3–12 m (10–39 ft)EnvironmentMarine; reef-associated; depth range 3 - 12 mClimateTropicalDistributionIndo-Pacific: Malaysia and Indonesia to Samoa, north to southern Japan, south to northwestern Australia and New South Wales.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, 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