HomeFish encyclopediaRay-finned fishesFlatfishesLefteye floundersLongarm flounder Longarm flounder (Laeops pectoralis) Scientific name: Laeops pectoralis von Bonde, 1922 The Longarm flounder (Laeops pectoralis) is a marine fish of the family Bothidae. Native range: Western Indian Ocean, Kenya, Mozambique and South Africa. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 110-116; Anal spines: 0; Anal soft rays: 91 - 96. Eyed side brownish; eyed side of median fins and pectorals darker; pectoral fin with 11-13 rays on eyed side, 11-12 rays on blind side.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLaeops pectoralisFamilyBothidae (Lefteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length19.0Depth range180–310 m (591–1017 ft)EnvironmentMarine; bathydemersal; depth range 180 - 310 mClimateDeep-waterDistributionWestern Indian Ocean: Kenya, Mozambique and South Africa.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026