Adults inhabit lagoon and seaward reefs. A planktivorous species . Oviparous, distinct pairing during breeding . Eggs are demersal and adhere to the substrate . Males guard and aerate the eggs .
Dorsal spines (total): 14; Dorsal soft rays (total): 12 - 13; Anal spines: 2; Anal soft rays: 12 - 13. This species is light green with a distinctive elongate dark blotch on the caudal peduncle and a large black spot on the upper pectoral axil.: fusiform / normal; Cross section: compressed.
Behavioural data for Slender reef-damsel is currently being reviewed.
Oviparous, distinct pairing during breeding . Eggs are demersal and adhere to the substrate . Males guard and aerate the eggs .
Marine; reef-associated; non-migratory; depth range 3 - 12 m . Tropical; 12°N - 6°N Central Pacific: known only from the Marshall Islands and Caroline Islands.
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