HomeFish encyclopediaRay-finned fishesPerch-like fishThreadfin breams, Whiptail breamsThree-lined monocle bream Three-lined monocle bream (Scolopsis trilineata) Scientific name: Scolopsis trilineata Kner, 1868 The Three-lined monocle bream (Scolopsis trilineata) is a marine fish of the family Nemipteridae. Native range: Western Pacific, South China Sea to Samoa, north to the Philippines, south to Scott Reef, New Caledonia and Tonga. BiologyDorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 7. Head scales reaching forward to level of middle of eyes. Lower limb of preopercle naked. Antrorse (forward-directed) suborbital spine absent. Pelvic fins long, reaching to or just beyond level of anus. Axillary scale present. Color: Upper body dusky grey or brown, silvery-white below. Scales on sides with pearly-blue centers. 3 bluish-white stripes on snout.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameScolopsis trilineataFamilyNemipteridae (Threadfin breams, Whiptail breams)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Common length14.0Depth range20 m (66 ft)EnvironmentMarine; reef-associated; depth range ? - 20 mClimateTropicalDistributionWestern Pacific: South China Sea to Samoa, north to the Philippines, south to Scott Reef, New Caledonia and Tonga.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: subsistence fisheriesResilienceHigh, 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