Southern whitetail major (Stegastes beebei)

Scientific name: Stegastes beebei Nichols, 1924

The Southern whitetail major (Stegastes beebei) is a marine fish of the family Pomacentridae. Native range: Eastern Pacific, off Panama, Malpelo Island (Colombia), Cocos Island (Costa Rica), and the Galapagos Islands.

Biology

Dorsal soft rays (total): 15; Anal soft rays: 13. Usually with 14 or 15 spines and 10 or 11 gill rakers.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Stegastes beebei
Family: Pomacentridae (Damselfishes)
Order: Perciformes (Perch-like fish)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 15.0
Depth range: 1–5 m (3–16 ft)
Environment: Marine; reef-associated; non-migratory; depth range 1 - 5 m
Climate: Tropical
Distribution: Eastern Pacific: off Panama, Malpelo Island (Colombia), Cocos Island (Costa Rica), and the Galapagos Islands.
Conservation status (IUCN): Vulnerable (VU) (B2ac(iv); D2)
Threat to humans: Harmless
Resilience: Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

Last updated 27 September 2026