HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesThreadfin goby Threadfin goby (Sicyopterus longifilis) Scientific name: Sicyopterus longifilis de Beaufort, 1912 The Threadfin goby (Sicyopterus longifilis) is a freshwater fish of the family Gobiidae. Native range: Asia, Philippines and Indonesia. Reported from New Guinea. BiologyDorsal spines (total): 7; Dorsal soft rays (total): 10; Anal spines: 1; Anal soft rays: 10Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSicyopterus longifilisFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length9.7EnvironmentFreshwater; demersalClimateTropicalDistributionAsia: Philippines and Indonesia. Reported from New Guinea.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