HomeFish encyclopediaRay-finned fishesCusk eelsCusk-eelsRedfin brotula Redfin brotula (Petrotyx sanguineus) Scientific name: Petrotyx sanguineus Meek & Hildebrand, 1928 The Redfin brotula (Petrotyx sanguineus) is a marine fish of the family Ophidiidae. Native range: Western Atlantic, southern Florida, USA and Bahamas to northern South America. BiologyCommon species, found on coral reefs. Oviparous, with oval pelagic eggs floating in a gelatinous mass.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePetrotyx sanguineusFamilyOphidiidae (Cusk-eels)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length13.0Depth range3–15 m (10–49 ft)EnvironmentMarine; reef-associated; depth range 3 - 15 mClimateTropicalDistributionWestern Atlantic: southern Florida, USA and Bahamas to northern South America.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interestResilienceHigh, 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