HomeFish encyclopediaRay-finned fishesPerch-like fishDamselfishesSt. Helena chromis St. Helena chromis (Chromis sanctaehelenae) Scientific name: Chromis sanctaehelenae Edwards, 1987 The St. Helena chromis (Chromis sanctaehelenae) is a marine fish of the family Pomacentridae. Native range: Southeast Atlantic, St. Helena Island. BiologyDorsal spines (total): 12 - 14; Dorsal soft rays (total): 11-12; Anal spines: 2; Anal soft rays: 11 - 12Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChromis sanctaehelenaeFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length13.0Depth range5–35 m (16–115 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 5 - 35 mClimateTropicalDistributionSoutheast Atlantic: St. Helena Island.Conservation status (IUCN)Vulnerable (VU) (D2)Threat 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