Chrysiptera hemicyanea

Azure demoiselle | Azure Damsel | Half-blue Damsel | Yellow-dipped Damsel
Chrysiptera hemicyanea
Chrysiptera hemicyanea, adult, Photo: Rick Stuart-Smith
Chrysiptera hemicyanea
Chrysiptera hemicyanea, adult, Banda Islands, Indonesia, Photo: Joe Shields
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Chrysiptera hemicyanea
Chrysiptera hemicyanea


Tropical Indo-Pacific


Bright blue upper body sharply demarked from yellow belly, with line of separation extending from lower head to upper tail base. Small black spot at pectoral base, two black bands from snout to eye.


Max Size: 7 cm

Sea Temperature Range: 25.4-31.2°C

Depth: 1-38m

Habitat Generalization Index: 2.32

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: Not Evaluated

Occurrence: Frequent (19.5% 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 (30 per transect)

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