HomeFish encyclopediaRay-finned fishesPerch-like fishDrums or croakersOrangemouth weakfish Orangemouth weakfish (Cynoscion xanthulus) Scientific name: Cynoscion xanthulus Jordan & Gilbert, 1882 The Orangemouth weakfish (Cynoscion xanthulus) is a brackish-water fish of the family Sciaenidae. Native range: Eastern Pacific, Mexico. Introduced into the highly saline waters of Salton Sea in southern California, USA. Species factsScientific nameCynoscion xanthulusFamilySciaenidae (Drums or croakers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length129EnvironmentMarine; brackish; benthopelagicClimateTropicalDistributionEastern Pacific: Mexico. Introduced into the highly saline waters of Salton Sea in southern California, USA.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: highly commercial; gamefish: yesResilienceLow, minimum population doubling time 4.5 - 14 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