HomeFish encyclopediaRay-finned fishesCusk eelsViviparous brotulasGold brotula Gold brotula (Gunterichthys longipenis) Scientific name: Gunterichthys longipenis Dawson, 1966 The Gold brotula (Gunterichthys longipenis) is a brackish-water fish of the family Bythitidae. Native range: Western Atlantic, northern Gulf of Mexico. BiologyDorsal soft rays (total): 60-71; Anal soft rays: 41 - 52; Vertebrae: 38 - 40. Diagnosis: Blunt snout; small distinct eyes, 1.4-1.9% SL in adults; head naked, body covered with imbricate scales; interorbital in adults 5.6-7.7% SL; posterior infraorbital pores 2; rays in dorsal fin 60-71, anal 41-52, caudal 12-15; otolith with fused colliculi; sulcus small; 1 pair of pseudoclaspers with 2 almost equally long supporters.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGunterichthys longipenisFamilyBythitidae (Viviparous brotulas)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length7.5Depth range9 m (30 ft)EnvironmentMarine; brackish; demersal; depth range ? - 9 mClimateSubtropicalDistributionWestern Atlantic: northern Gulf of Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceLow, minimum population doubling time 4.5 - 14 years (Assuming Fec SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026