HomeFish encyclopediaRay-finned fishesPerch-like fishJawfishesRoughcheek jawfish Roughcheek jawfish (Opistognathus leprocarus) Scientific name: Opistognathus leprocarus Smith-Vaniz, 1997 The Roughcheek jawfish (Opistognathus leprocarus) is a marine fish of the family Opistognathidae. Native range: Western Central Atlantic, known only from the Bahamas and the Lesser Antilles, including Anegada Passage, between Virgin Islands and Anguilla (ANSP 138563). BiologyDorsal spines (total): 10 - 11; Dorsal soft rays (total): 11-13; Anal spines: 3; Anal soft rays: 11 - 12; Vertebrae: 26. Anterior nostril a short tube without cirrus on posterior rim; posterior end of maxilla rigid, without thin flexible lamina; opercle with prominent wedge-shaped dark blotch; buccal cavity and inner lining of maxilla and adjacent membranes immaculate; dorsal fin spines slender, straight, with rigid sharp tip; nape completely scaled; cheeks with 4 or 5 rows of scales; segmented anal fin rays 11 or 12; caudal vertebrae 16; pelvic fins elongate in adults 39-49% SL with tip of depressed fin extending posteriorly well past anal fin origin.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOpistognathus leprocarusFamilyOpistognathidae (Jawfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length8.1Depth range165–308 m (541–1010 ft)EnvironmentMarine; bathydemersal; depth range 165 - 308 mClimateDeep-waterDistributionWestern Central Atlantic: known only from the Bahamas and the Lesser Antilles, including Anegada Passage, between Virgin Islands and Anguilla (ANSP 138563).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