Neopomacentrus azysron (Bleeker, 1877)
Yellowtail demoiselle
Neopomacentrus azysron
photo by Randall, J.E.

Family:  Pomacentridae (Damselfishes), subfamily: Pomacentrinae
Max. size:  7.5 cm TL (male/unsexed)
Environment:  reef-associated; depth range 1 - 12 m, non-migratory
Distribution:  Indo-West Pacific: East Africa to the Indo-Malayan Archipelago and Vanuatu, north to Taiwan, south to northern Australia, New Guinea, and the Solomon Islands.
Diagnosis:  Dorsal spines (total): 13-13; Dorsal soft rays (total): 11-12; Anal spines: 2-2; Anal soft rays: 11-12. Description: Overall grey with bluish tinge from scales bluish streaks, ear spot dark, pectoral-fin base spot black small, tail yellow extending to posterior dorsal fin (Ref. 90102). Distinguished from similar species by the all-yellow anal fin (Ref. 48636). Body depth 2.5-2.8 in SL (Ref. 90102).
Biology:  Usually found in outer reef slopes and frequently in the deeper surge channels or adjacent ledges. Form small groups in sub-tidal habitats (Ref. 48636). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205). Diurnal species (Ref. 113699).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (120744)
Threat to humans:  harmless
Country info:   

Entered by: Reyes, Rodolfo B. - 19.05.94
Modified by: Jansalin, Jeremiah Glenn - 25.10.19

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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