HomeFish encyclopediaRay-finned fishesCusk eelsCusk-eelsBlack brotula Black brotula (Cherublemma emmelas) Scientific name: Cherublemma emmelas Gilbert, 1890 The Black brotula (Cherublemma emmelas) is a marine fish of the family Ophidiidae. Native range: Eastern Pacific, Baja California to northern Chile. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 99-113; Anal spines: 0; Anal soft rays: 81 - 98; Vertebrae: 55 - 58. Rostral spine well developed with vertical basal component which projects dorsally, and a long forward projecting straight component; peritoneum and guts black; narrow weak band of basibranchial teeth; bones thin, weakly developed. Branchiostegal rays: 7.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCherublemma emmelasFamilyOphidiidae (Cusk-eels)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length25.0Depth range102–740 m (335–2428 ft)EnvironmentMarine; bathydemersal; depth range 102 - 740 mClimateDeep-waterDistributionEastern Pacific: Baja California to northern Chile.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026