HomeFish encyclopediaRay-finned fishesEels and MoraysConger and garden eelsThreadtail conger Threadtail conger (Uroconger syringinus) Scientific name: Uroconger syringinus Ginsburg, 1954 The Threadtail conger (Uroconger syringinus) is a marine fish of the family Congridae. Native range: Eastern Atlantic, Gulf of Guinea. Western Atlantic: Gulf of Mexico to Suriname. BiologyFurther study is needed to clarify the differences between this species and U. lepturus (Richardson) from the Indo-West Pacific.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameUroconger syringinusFamilyCongridae (Conger and garden eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length38.0Depth range44–384 m (144–1260 ft)EnvironmentMarine; demersal; depth range 44 - 384 mClimateSubtropicalDistributionEastern Atlantic: Gulf of Guinea. Western Atlantic: Gulf of Mexico to Suriname.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