HomeFish encyclopediaRay-finned fishesPerch-like fishGrunters or tigerperchesLargescaled terapon Largescaled terapon (Terapon theraps) Scientific name: Terapon theraps Cuvier, 1829 The Largescaled terapon (Terapon theraps) is a freshwater fish of the family Terapontidae. BiologyDorsal spines (total): 11 - 12; Dorsal soft rays (total): 9-11; Anal spines: 3; Anal soft rays: 7 - 9. Body oval, compressed, robust. Lower opercular spine extending well beyond the opercular flap. Post-temporal bone exposed posteriorly and serrate. Color is dusky green above, white below; body, head and fins with an iridescent sheen. Four longitudinal brown stripes extend on the upper side from the head. A large prominent black blotch is on the distal end of the spinous portion of the dorsal fin. Similar brown stripes run across the caudal fin. (from ).Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTerapon therapsFamilyTerapontidae (Grunters or tigerperches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length30.0EnvironmentMarine; freshwater; brackish; reef-associatedClimateTropicalDistributionIndo-West Pacific: East Africa, Madagascar, Seychelles, Red Sea, Arabian Peninsula, Persian Gulf to India and Andaman Islands; and southeast Asia. Reaches south to the Arafura Sea and northern Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, minimum population doubling time less than 15 months (K=0.6-0.8) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026