HomeFish encyclopediaRay-finned fishesSilversidesRainbowfishes, blue eyesVan Heurn's rainbowfish Van Heurn's rainbowfish (Melanotaenia vanheurni) Scientific name: Melanotaenia vanheurni Weber & de Beaufort, 1922 The Van Heurn's rainbowfish (Melanotaenia vanheurni) is a freshwater fish of the family Melanotaeniidae. Native range: Asia, known thus far only from the Idenburg ( now Taritatu) and Doorman Rivers in Irian Jaya, Indonesia. BiologyDorsal spines (total): 5 - 7; Dorsal soft rays (total): 18-28; Anal spines: 1; Anal soft rays: 21 - 26Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMelanotaenia vanheurniFamilyMelanotaeniidae (Rainbowfishes, blue eyes)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)Maximum length16.0EnvironmentFreshwater; benthopelagicClimateTropicalDistributionAsia: known thus far only from the Idenburg ( now Taritatu) and Doorman Rivers in Irian Jaya, Indonesia.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: of no interestResilienceMedium, 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