Bumphead damselfish (Microspathodon bairdii)

Scientific name: Microspathodon bairdii Gill, 1862

The Bumphead damselfish (Microspathodon bairdii) is a marine fish of the family Pomacentridae. Native range: Eastern Pacific, central Gulf of California to Ecuador, including the Revillagigedo, Cocos and Galapagos Islands.

Biology

Dorsal spines (total): 12; Dorsal soft rays (total): 15-16; Anal spines: 2; Anal soft rays: 13 - 14. Head with a prominent hump.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Microspathodon bairdii
Family: Pomacentridae (Damselfishes)
Order: Perciformes (Perch-like fish)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 25.0
Depth range: 3–8 m (10–26 ft)
Environment: Marine; reef-associated; non-migratory; depth range 3 - 8 m
Climate: Tropical
Distribution: Eastern Pacific: central Gulf of California to Ecuador, including the Revillagigedo, Cocos and Galapagos Islands.
Conservation status (IUCN): Least Concern (LC)
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