HomeFish encyclopediaRay-finned fishesPerch-like fishJawfishesDarwin jawfish Darwin jawfish (Opistognathus darwiniensis) Scientific name: Opistognathus darwiniensis Macleay, 1878 The Darwin jawfish (Opistognathus darwiniensis) is a marine fish of the family Opistognathidae. Native range: Indo-West Pacific, northern Australia. BiologyFound in shallow reefs, in sand or rubble areas. Mouthbrooders.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOpistognathus darwiniensisFamilyOpistognathidae (Jawfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length50.0EnvironmentMarine; reef-associatedClimateTropicalDistributionIndo-West Pacific: northern Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026