HomeMarine aquarium fishOther marine fishTwo-lined monocle bream Two-lined monocle bream (Scolopsis bilineata) Scientific name: Scolopsis bilineata Bloch, 1793 The Two-lined monocle bream (Scolopsis bilineata) is a marine fish of the family Nemipteridae. Native range: Indo-West Pacific, Maldives and the Laccadive Islands to Fiji, north to southern Japan, south to Lord Howe Island. Recently reported from Tonga. BiologyDorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 7. Some geographical variations, especially different between Indian and Pacific Oceans; Pacific form with yellow stripes and yellow dorsal fin, while the Indian ocean form lacks the yellow. Head scales reaching to or just in front of anterior nostrils. Lower limb of preopercle scaly. Antrorse (forward-directed) suborbital spine present beneath eye. Pelvic fins long, reaching to or almost to level of origin of anal fin. Axillary scale present. Upper part of body olive or greyish-brown, pearly-white below. 2 narrow yellow stripes on head, another dark red-edged pearly-white stripe from mouth to base of soft dorsal fin. A yellow mid dorsal stripe from above ayes along base of dorsal fin. A whitish patch just below base of posterior half of soft dorsal rays. Juveniles with 3 dark brown stripes on upper part of body, interspaces between stripes yellow.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameScolopsis bilineataFamilyNemipteridae (Threadfin breams, Whiptail breams)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length23.0Common length13.0Depth range1–25 m (3–82 ft)EnvironmentMarine; reef-associated; depth range 1 - 25 mClimateTropicalDistributionIndo-West Pacific: Maldives and the Laccadive Islands to Fiji, north to southern Japan, south to Lord Howe Island. Recently reported from Tonga.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: subsistence fisheries; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More other marine fishArabian monocle breamScolopsis ghanamStriped monocle breamScolopsis lineataBrownbanded bamboosharkChiloscyllium punctatumSmallmouth squirrelfishSargocentron microstomaSharptooth houndsharkTriakis megalopterusBrown chubKyphosus bigibbusSee all other marine fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026