HomeFish encyclopediaRay-finned fishesEels and MoraysConger and garden eelsBrown garden eel Brown garden eel (Heteroconger longissimus) Scientific name: Heteroconger longissimus G?nther, 1870 The Brown garden eel (Heteroconger longissimus) is a marine fish of the family Congridae. BiologyEye large. Lower jaw longer than upper; 157 to 165 vertebrae.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHeteroconger longissimusFamilyCongridae (Conger and garden eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length51.0Depth range10–60 m (33–197 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 10 - 60 m, usually 20 - 60 mClimateTropicalDistributionEastern Atlantic: known only from Madeira, Canary Islands and Senegal. Western Atlantic: Bahamas, Florida keys, Antilles, Yucatan, Belize and Honduras; extending to Brazil.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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