HomeFish encyclopediaRay-finned fishesSawbelliesSquirrelfishes, soldierfishesDusky squirrelfish Dusky squirrelfish (Sargocentron vexillarium) Scientific name: Sargocentron vexillarium Poey, 1860 The Dusky squirrelfish (Sargocentron vexillarium) is a marine fish of the family Holocentridae. Native range: Western Atlantic, Bermuda and Florida, USA to northern South America. BiologyDorsal spines (total): 11; Dorsal soft rays (total): 13; Anal spines: 4; Anal soft rays: 9. Upper profile angular. Mouth small, lower jaw fitting into upper. Lower opercular spine longer and stronger than upper. Axil of pectoral dark, jet black in small specimens, dusky brown in large. Head and nape clear bright red. Body with alternating streaks of red and white.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSargocentron vexillariumFamilyHolocentridae (Squirrelfishes, soldierfishes)OrderBeryciformes (Sawbellies)ClassActinopterygii (Ray-finned fishes)Maximum length18.0Depth range20 m (66 ft)EnvironmentMarine; reef-associated; depth range ? - 20 mClimateTropicalDistributionWestern Atlantic: Bermuda and Florida, USA to northern South America.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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