HomeFish encyclopediaRay-finned fishesEels and MoraysFreshwater eelsIndonesian longfinned eel Indonesian longfinned eel (Anguilla malgumora) Scientific name: Anguilla malgumora Kaup, 1856 The Indonesian longfinned eel (Anguilla malgumora) is a freshwater fish of the family Anguillidae. Native range: Asia, Borneo (Mahakam) and Sulawesi in Indonesia; and the Philippines. Species factsScientific nameAnguilla malgumoraFamilyAnguillidae (Freshwater eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length80.0EnvironmentMarine; freshwater; brackish; demersal; catadromousClimateTropicalDistributionAsia: Borneo (Mahakam) and Sulawesi in Indonesia; and the Philippines.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: subsistence fisheriesResilienceVery Low, minimum population doubling time more than 14 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