Chromis delta Randall, 1988
Deep reef chromis
Chromis delta
photo by Randall, J.E.

Family:  Pomacentridae (Damselfishes), subfamily: Pomacentrinae
Max. size:  7 cm TL (male/unsexed)
Environment:  reef-associated; depth range 10 - 80 m, non-migratory
Distribution:  Indo-West Pacific: Maldives and Christmas Island in the eastern Indian Ocean to Fiji, north to Taiwan and the Philippines south to Vanuatu. Recently recorded from Tonga (Ref. 53797).
Diagnosis:  Dorsal spines (total): 12-12; Dorsal soft rays (total): 12-14; Anal spines: 2-2; Anal soft rays: 12-14. Description: Overall dark brown, bluish gray ventrally; caudal peduncle band broad white, often edged anteriorly with black; pectoral fin base covered entirely by a black spot (Ref. 2334). Body depth 1.9-2.2 in SL (Ref. 90102).
Biology:  Adults inhabit steep outer reef slopes with rich coral growth. They occur singly or in small groups and remains close to shelter, often at the entrance of large caves or near its ceiling (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).
IUCN Red List Status: Least Concern (LC); Date assessed: 17 November 2010 Ref. (120744)
Threat to humans:  harmless
Country info:   

Entered by: Capuli, Estelita Emily - 11.06.92
Modified by: Luna, Susan M. - 19.07.11
Checked by: Reyes, Rodolfo B. - 23.08.94

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 Not for publication.

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