HomeFish encyclopediaRay-finned fishesPerch-like fishAsiatic glassfishesBanded-tail glassy perchlet Banded-tail glassy perchlet (Ambassis urotaenia) Scientific name: Ambassis urotaenia Bleeker, 1852 The Banded-tail glassy perchlet (Ambassis urotaenia) is a freshwater fish of the family Ambassidae. Native range: Indo-Pacific, East Africa to the Philippines, Fiji and Carolines, north to Sagami Bay, Japan. BiologyDorsal spines (total): 8; Dorsal soft rays (total): 9-10; Anal spines: 3; Anal soft rays: 9 - 10. Body all silvery and translucent with a dusky midlateral band. Back margin evenly dark. Membrane between 2nd and 3rd dorsal spine blackish. Mouth strongly oblique. Margin almost straight from the origin of the 1st dorsal snout.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAmbassis urotaeniaFamilyAmbassidae (Asiatic glassfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length14.0EnvironmentMarine; freshwater; brackish; demersal; amphidromousClimateTropicalDistributionIndo-Pacific: East Africa to the Philippines, Fiji and Carolines, north to Sagami Bay, Japan.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Assuming Fec > 10,000) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026