HomeFish encyclopediaRay-finned fishesPerch-like fishKnifejawsMozambique knifejaw Mozambique knifejaw (Oplegnathus peaolopesi) Scientific name: Oplegnathus peaolopesi Smith, 1947 The Mozambique knifejaw (Oplegnathus peaolopesi) is a marine fish of the family Oplegnathidae. Native range: Western Indian Ocean, Delagoa Bay in Mozambique northwards, but the northern limit of its range in not known. BiologyDorsal spines (total): 11; Dorsal soft rays (total): 20-21; Anal spines: 3; Anal soft rays: 16. Adults dark bronzy brown in color.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOplegnathus peaolopesiFamilyOplegnathidae (Knifejaws)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length75.0Common length50.0Depth range20–130 m (66–427 ft)EnvironmentMarine; reef-associated; depth range 20 - 130 mClimateTropicalDistributionWestern Indian Ocean: Delagoa Bay in Mozambique northwards, but the northern limit of its range in not known.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercial SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026