HomeFish encyclopediaRay-finned fishesSmeltsIcefishes or noodlefishesDwarf noodlefish Dwarf noodlefish (Sundasalanx praecox) Scientific name: Sundasalanx praecox Roberts, 1981 The Dwarf noodlefish (Sundasalanx praecox) is a freshwater fish of the family Salangidae. Native range: Asia, Mekong basin. BiologyOccur in the main stream of middle Mekong. Usually taken incidentally in haul seines and trap catches. Not seen in markets.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSundasalanx praecoxFamilySalangidae (Icefishes or noodlefishes)OrderOsmeriformes (Smelts)ClassActinopterygii (Ray-finned fishes)Maximum length2.3EnvironmentFreshwater; demersalClimateTropicalDistributionAsia: Mekong basin.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Fec = 50) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026