HomeMarine aquarium fishClownfish & damselfishBicolor damselfish Bicolor damselfish (Stegastes partitus) Scientific name: Stegastes partitus Poey, 1868 The Bicolor damselfish (Stegastes partitus) is a marine fish of the family Pomacentridae. Native range: Western Atlantic, including southern Florida (USA), Bahamas, and the Caribbean. Probably extending to Brazil. BiologyDorsal spines (total): 12; Dorsal soft rays (total): 14-17; Anal spines: 2; Anal soft rays: 13 - 15. Exhibits geographic color variations. Body dark in front, becoming abruptly yellow between last dorsal spine and anal fin origin.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameStegastes partitusFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length10.0Depth range0–100 m (0–328 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 0 - 100 mClimateTropicalDistributionWestern Atlantic: including southern Florida (USA), Bahamas, and the Caribbean. Probably extending to Brazil.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More clownfish & damselfishBeaugregoryStegastes leucostictusThreespot damselfishStegastes planifronsCocoa damselfishStegastes variabilisLongfin damselfishStegastes diencaeusPurple reeffishChromis scottiSunshinefishChromis insolataSee all clownfish & damselfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026