HomeFish encyclopediaRay-finned fishesFlatfishesRighteye floundersSand flounder Sand flounder (Rhombosolea plebeia) Scientific name: Rhombosolea plebeia Richardson, 1843 The Sand flounder (Rhombosolea plebeia) is a marine fish of the family Pleuronectidae. Native range: Southwest Pacific, New Zealand. BiologyInhabits shallow waters, generally at depth of less than 50 m, and to around 100 m. to. Juveniles gather in sheltered inshore waters, such as estuarine areas, shallow mudflats and sandflats, where they remain for up to two years.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameRhombosolea plebeiaFamilyPleuronectidae (Righteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Common length30.0Depth range22–100 m (72–328 ft)EnvironmentMarine; demersal; depth range 22 - 100 mClimateTemperateDistributionSouthwest Pacific: New Zealand.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: commercial; gamefish: yesResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tmax=6; k=0.23-0.78) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026