HomeFish encyclopediaRay-finned fishesEels and MoraysDuckbill eelsBlacktail pike-conger Blacktail pike-conger (Hoplunnis diomediana) Scientific name: Hoplunnis diomediana Goode & Bean, 1896 The Blacktail pike-conger (Hoplunnis diomediana) is a marine fish of the family Nettastomatidae. Native range: Western Atlantic. BiologySnout long and pointed; dorsal and anal black along posterior part of tail.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHoplunnis diomedianaFamilyNettastomatidae (Duckbill eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length36.6Depth range203 m (666 ft)EnvironmentMarine; demersal; depth range ? - 203 mClimateSubtropicalDistributionWestern Atlantic.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, 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