HomeFish encyclopediaRay-finned fishesPerch-like fishEmperors or scavengersDrab emperor Drab emperor (Lethrinus ravus) Scientific name: Lethrinus ravus Carpenter & Randall, 2003 The Drab emperor (Lethrinus ravus) is a marine fish of the family Lethrinidae. Native range: Western Pacific, Ryukyu Islands to northeastern Australia and New Caledonia. Also northwestern Australia. BiologyDorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 8Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLethrinus ravusFamilyLethrinidae (Emperors or scavengers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length25.0Depth range8–35 m (26–115 ft)EnvironmentMarine; reef-associated; depth range 8 - 35 mClimateTropicalDistributionWestern Pacific: Ryukyu Islands to northeastern Australia and New Caledonia. Also northwestern Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries:ResilienceMedium, 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