Plectroglyphidodon leucozonus (Bleeker, 1859)
Singlebar devil
白帶固曲齒鯛
Plectroglyphidodon leucozonus
photo by Andy Cornish@114°E Hong Kong Reef Fish Survey

Family:  Pomacentridae (Damselfishes), subfamily: Microspathodontinae
Max. size:  12 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 0 - 6 m, non-migratory
Distribution:  Indo-Pacific: Red Sea and East Africa to the Marshall and Pitcairn island groups, north to Japan, south to Australia.
Diagnosis:  Dorsal spines (total): 12-12; Dorsal soft rays (total): 15-17; Anal spines: 2-2; Anal soft rays: 12-13. Description: Adult overall brown, middle of side has vertical bar white faint, pectoral fin base spot dark (Ref. 90102). Juveniles have a conspicuous dorsal ocellus behind a wide white band. Large adults are uniformly dirty bronze (Ref. 1602). Body depth 1.8-1.9 in SL (Ref. 90102)
Biology:  Adults inhabit surge-swept shorelines and seaward reef margins. Juveniles often occur in pockets of the intertidal reef crest, while adults are found in ridges between surge channels (Ref. 1602). Feed on benthic algae. Juveniles found in sheltered ocean bays, shallow low boulder-reefs above sand level. Known in clear-water reefs in gutters and upper edge of drop-offs (Ref. 9002). 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. 54980; 113699).
IUCN Red List Status: Least Concern (LC); Date assessed: 23 September 2021 Ref. (130435)
Threat to humans:  harmless
Country info:  Reported from northern (Ref. 43515), southern, and western Taiwan (including Yun-gan (Ref. 43515) and Hsiao-liu-chiu) and from the Penghu (Ref. 55073), Lanyu, and Green islands (Ref. 48445, 48451). Also Ref. 11104, 43515, 47843.


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