Cephalopholis boenak

Brownbarred Rockcod | Brown Coral-cod | Brown-banded Seabass | Brownbarred Grouper | Charcoal Grouper | Chocolate Grouper | Dusty-banded Cod | Overcast Grouper
Cephalopholis boenak
Cephalopholis boenak, adult, Raja Ampat, Indonesia, Photo: Andrew Green


Tropical Indo-Pacific


Grey body with seven or eight vertical dark brown bars, brown markings on face and a black ear-patch above pectoral fin base on gill cover. Tail fin, and rear of dorsal and anal fins with pale blue margin; juvenile with white stripe from snout to base of dorsal fin. Shy and secretive, disappearing into holes in the reef when approached. Length to 30 cm.


Max Size: 30 cm

Sea Temperature Range: 20.2-31.6°C

Depth: 1-64m

Habitat Generalization Index: 9.66

Also referred to as the SGI (Species Generalisation Index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here.

Conservation and Rarity

IUCN Status: Least Concern

Occurrence: Frequent (18.7% of sites)

Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed

Abundance: Few (2 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.

Edit by: Joe Shields