A review by Hsu published in 2011 has confirmed this species to be a colour variation of the widespread Siganus fuscescens. The World Register of Marine Species (WoRMS) does not yet reflect this update, listing these as separate species. They will remain separate in the RLS database until updated in WoRMS.
Max Size: 30 cm
Habitat: Coral Reef, Rocky Reef, Seagrass
IUCN Threat Status: Not Evaluated
Occurrence: Common (31% 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: Many (80 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.