HomeFish encyclopediaRay-finned fishesPerch-like fishGruntsRaucous grunt Raucous grunt (Haemulopsis leuciscus) Scientific name: Haemulopsis leuciscus G?nther, 1864 The Raucous grunt (Haemulopsis leuciscus) is a brackish-water fish of the family Haemulidae. Native range: Eastern Pacific, Gulf of California to Peru. BiologyBody robust, somewhat compressed, and not very deep (depth contained 2.8 to 3.0 times in standard length); mouth small and terminal, its posterior end located at the same level as the anterior rim of the eye; profile of head convex; first gill arch with 18 to 23 gill rakers; dorsal fin deeply notched, with 12 spines and 14 to 15 soft rays (XII, 14-15); second anal spine stronger and but shorter than third; third anal spine, when bent, reaching or surpassing base of last anal ray;; back brownish gray; belly lighter; axilla of pectoral fins and upper edge of operculum blackSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHaemulopsis leuciscusFamilyHaemulidae (Grunts)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length41.0Common length25.0EnvironmentMarine; brackish; demersalClimateTropicalDistributionEastern Pacific: Gulf of California to Peru.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, 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