HomeFish encyclopediaRay-finned fishesPerch-like fishJawfishesBigscale jawfish Bigscale jawfish (Opistognathus macrolepis) Scientific name: Opistognathus macrolepis Peters, 1866 The Bigscale jawfish (Opistognathus macrolepis) is a marine fish of the family Opistognathidae. Native range: Western Central Pacific. BiologyFound on the continental shelf; over silt bottom.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOpistognathus macrolepisFamilyOpistognathidae (Jawfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)EnvironmentMarine; reef-associatedClimateTropicalDistributionWestern Central Pacific.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