HomeFish encyclopediaRay-finned fishesCusk eelsViviparous brotulasLucaya cavebrotula Lucaya cavebrotula (Lucifuga lucayana) Scientific name: Lucifuga lucayana M?ller, Schwarzhans, Iliffe & Nielsen, 2006 The Lucaya cavebrotula (Lucifuga lucayana) is a marine fish of the family Bythitidae. Native range: Western Atlantic, Caribbean, Bahamas. BiologyDorsal soft rays (total): 84-91; Anal soft rays: 63 - 69; Vertebrae: 50 - 52. This species is distinguished from its congeners by the following combination of characters: Vertebrae 12-13+37-39=50-52, dorsal fin rays 84-91, anal fin rays 63-69, pectoral fin rays 17-18, caudal fin rays 10; head profile above eye strongly depressed, scales on occiput, eyes present (0.9-1.0 % SL); palatine teeth absent; color uniformly light brown, long gill-rakers 3, pale.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLucifuga lucayanaFamilyBythitidae (Viviparous brotulas)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length9.9Depth range12–20 m (39–66 ft)EnvironmentMarine; benthopelagic; depth range 12 - 20 mClimateSubtropicalDistributionWestern Atlantic: Caribbean, Bahamas.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026