Stegastes beebei (Nichols, 1924)
Southern whitetail major
photo by FAO

Family:  Pomacentridae (Damselfishes), subfamily: Microspathodontinae
Max. size:  15 cm SL (male/unsexed)
Environment:  reef-associated; marine; depth range 1 - 5 m, non-migratory
Distribution:  Eastern Pacific: off Panama, Malpelo Island (Colombia), Cocos Island (Costa Rica), and the Galapagos Islands.
Diagnosis:  Dorsal soft rays (total): 15; Anal soft rays: 13. Usually with 14 or 15 spines and 10 or 11 gill rakers (Ref. 7247).
Biology:  Adults inhabit coral and rocky reefs (Ref. 9334). Somewhat territorial, they chase away small intruders (Ref. 5227). Omnivorous, they graze on algae and nibbles at small crustaceans and the tentacles of anemones (Ref. 28023). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
IUCN Red List Status: Least Concern (LC); Date assessed: 13 September 2022 Ref. (130435)
Threat to humans:  harmless


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