HomeFish encyclopediaRay-finned fishesPerch-like fishDamselfishesCortez damselfish Cortez damselfish (Stegastes rectifraenum) Scientific name: Stegastes rectifraenum Gill, 1862 The Cortez damselfish (Stegastes rectifraenum) is a marine fish of the family Pomacentridae. Native range: Eastern Central Pacific, Mexico, including the Gulf of California. BiologyDorsal spines (total): 12; Dorsal soft rays (total): 15-16; Anal spines: 2; Anal soft rays: 12 - 14. Exhibits color variations.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameStegastes rectifraenumFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length9.0Common length8.0Depth range1–10 m (3–33 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 1 - 10 mClimateSubtropicalDistributionEastern Central Pacific: Mexico, including the Gulf of California.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries:ResilienceLow, minimum population doubling time 4.5 - 14 years (tmax=11) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026