HomeFish encyclopediaRay-finned fishesFlatfishesRighteye floundersGreenback flounder Greenback flounder (Rhombosolea tapirina) Scientific name: Rhombosolea tapirina G?nther, 1862 The Greenback flounder (Rhombosolea tapirina) is a brackish-water fish of the family Pleuronectidae. Native range: Eastern Indian Ocean and Southwest Pacific, south coast of Australia; New Zealand. BiologyDorsal soft rays (total): 56-69; Anal soft rays: 40 - 50. Body deep (47-60% SL). Snout slightly extended into fleshy process projecting more or less in front of oblique mouth. Scales very small, rather firmly attached; cycloid on both sides, covering head except well anteriorly. Caudal fin rays 14 -17.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameRhombosolea tapirinaFamilyPleuronectidae (Righteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length45.0Depth range0–100 m (0–328 ft)EnvironmentMarine; brackish; demersal; depth range 0 - 100 mClimateSubtropicalDistributionEastern Indian Ocean and Southwest Pacific: south coast of Australia; New Zealand.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercial; aquaculture: experimentalResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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