| Family: |
Acanthuridae (Surgeonfishes, tangs, unicornfishes), subfamily: Acanthurinae |
| Max. size: |
16 cm SL (male/unsexed) |
| Environment: |
reef-associated; marine; depth range 0 - 45 m, |
| Distribution: |
Western Central Pacific: Indonesia, Philippines, Papua New Guinea, northern Great Barrier Reef, Solomon Islands, Palau, Vanuatu and Fiji. Recently recorded from Tonga (Ref. 53797). |
| Diagnosis: |
Dorsal spines (total): 8-8; Dorsal soft rays (total): 24-25; Anal spines: 3-3; Anal soft rays: 22-23. Margins of lips papillate. Only species of Ctenochaetus with angular dorsal and anal fins. Caudal fin of juveniles forked, of adults lunate. Gill rakers on anterior row 20-21, on posterior row 20. Outer soft portion of dorsal and anal fins orange (pale in preservative). Caudal fin white. Edge of lips crenulate. Upper teeth with 2 or 3 denticulations (not including tip). Anterior gill rakers 19-23 (Ref 42056). |
| Biology: |
Occurs singly or in small groups along steep coral-rich drop-offs of sheltered coasts (Ref. 48637). Feeds on algae and microfauna living in between the algae (Ref. 89999). Minimum depth reported taken from Ref. 128797. |
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 07 May 2010 Ref. (130435)
|
| Threat to humans: |
harmless |
| Country info: |
Recorded from Bongo Island and Paril-Sangay Protected Seascape, Moro Gulf (Ref. 106380), Tañon Strait (Ref. 107276), Cebu, Mactan I., the east coast of Cebu near Huisan Point and Siquijor I. (Ref. 42056), Bantayan Is. in northern Cebu (Ref. 114734), Dauin-Apo I. (Ref. 127519), Batangas (San Luis, Bauan, Mabini, Lobo, San Juan) Batangas, between 3-7 m deep from Feb. - April 2014 (Ref. 107629). Also Ref. 37792, 53416, 121724. |
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