HomeFish encyclopediaRay-finned fishesPerch-like fishMedusafishesIndian ruff Indian ruff (Psenopsis cyanea) Scientific name: Psenopsis cyanea Alcock, 1890 The Indian ruff (Psenopsis cyanea) is a marine fish of the family Centrolophidae. Native range: Western Indian Ocean, irregularly distributed off the east and west coasts of India. Also known from off Socotra and the mouth of the Gulf of Aden. BiologyFound in deep water, forming small schools. Minimum depth from.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePsenopsis cyaneaFamilyCentrolophidae (Medusafishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Common length16.0Depth range179–300 m (587–984 ft)EnvironmentMarine; bathydemersal; depth range 179 - 300 mClimateDeep-waterDistributionWestern Indian Ocean: irregularly distributed off the east and west coasts of India. Also known from off Socotra and the mouth of the Gulf of Aden.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, 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