HomeFish encyclopediaRay-finned fishesEels and MoraysConger and garden eelsThinlip conger Thinlip conger (Gnathophis mystax) Scientific name: Gnathophis mystax Delaroche, 1809 The Thinlip conger (Gnathophis mystax) is a marine fish of the family Congridae. Native range: Eastern Atlantic, southern Portugal to Morocco, including the Mediterranean. BiologyFound on muddy or sandy bottoms of the continental slope. Feeds on benthic invertebrates and probably small fishes.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGnathophis mystaxFamilyCongridae (Conger and garden eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length60.0Common length35.0Depth range80–800 m (262–2625 ft)EnvironmentMarine; demersal; depth range 80 - 800 mClimateSubtropicalDistributionEastern Atlantic: southern Portugal to Morocco, including the Mediterranean.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, 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