Straight division between black and white above front of anal fin. Restricted to eastern Australia and Pacific, whereas C. fieldi (Two-tone Puller) occurs in the Indian Ocean.
Information
Max Size: 8 cm
Sea Temperature Range: 23.0-29.9°C
Depth: 1-35m
Habitat: Coral Reef, Rocky Reef
Habitat Generalisation Index: 9.5
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
Rarity
IUCN Threat Status: Not Evaluated
Occurrence: Common (35% 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: Large aggregations (114 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Chromis iomelas, Adult. Photo: Rick Stuart-Smith
