HomeFish encyclopediaRay-finned fishesSawbelliesSquirrelfishes, soldierfishesDwarf squirrelfish Dwarf squirrelfish (Sargocentron iota) Scientific name: Sargocentron iota Randall, 1998 The Dwarf squirrelfish (Sargocentron iota) is a marine fish of the family Holocentridae. Native range: Indo-Pacific. BiologyDorsal spines (total): 11; Dorsal soft rays (total): 12-14; Anal spines: 4; Anal soft rays: 9; Vertebrae: 27. Body red with a very narrow darker red stripe separating longitudinal scale rows; spinous part of dorsal fin red; mottled faintly with white, the outer part of each membrane deeper red; remaining fins with red rays and clear membranes. 4-5 oblique rows of scales on cheek. Body depth 2.3-2.6 in SL; head length 2.5-2.6 in SL. Rounded anterior end of nasal bone; moderately large and spineless nasal fossa; surface of nasal bone between fossa and edge of premaxillary groove with a prominent retrorse spine; median edge of nasal bone (margin of premaxillary groove) with a small recumbent retrorse spine; longest dorsal spine 2.05-2.75 in head length; third anal spine 1.5-1.6 in head length; broadly rounded caudal fin lobes. Strongly serrated scales.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSargocentron iotaFamilyHolocentridae (Squirrelfishes, soldierfishes)OrderBeryciformes (Sawbellies)ClassActinopterygii (Ray-finned fishes)Maximum length7.7Depth range1–34 m (3–112 ft)EnvironmentMarine; reef-associated; depth range 1 - 34 mClimateTropicalDistributionIndo-Pacific.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