HomeFish encyclopediaRay-finned fishesSwallowers and GulpersSwallowersGulper eel Gulper eel (Saccopharynx ampullaceus) Scientific name: Saccopharynx ampullaceus Harwood, 1827 The Gulper eel (Saccopharynx ampullaceus) is a marine fish of the family Saccopharyngidae. Native range: Eastern Atlantic, scattered records from Greenland to Cape Verde. Also known from Western Atlantic. BiologyBathypelagic. Feeds on fishes. Oviparous, reduction of jaws and complete loss of teeth in sexually mature specimens of both sexes. Mature males with greatly enlarged olfactory organs. Minimum depth from.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSaccopharynx ampullaceusFamilySaccopharyngidae (Swallowers)OrderSaccopharyngiformes (Swallowers and Gulpers)ClassActinopterygii (Ray-finned fishes)Maximum length161Depth range0–3000 m (0–9843 ft)EnvironmentMarine; bathypelagic; depth range 0 - 3000 mClimateDeep-waterDistributionEastern Atlantic: scattered records from Greenland to Cape Verde. Also known from Western Atlantic.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceVery Low, minimum population doubling time more than 14 years (Assuming semelparity and tm>10) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026