| Family: |
Acanthuridae (Surgeonfishes, tangs, unicornfishes), subfamily: Prionurinae |
| Max. size: |
50 cm TL (male/unsexed) |
| Environment: |
reef-associated; marine |
| Distribution: |
Northwest Pacific: Matsushima Bay, Japan to Taiwan. |
| Diagnosis: |
Dorsal spines (total): 9-9; Dorsal soft rays (total): 22-24; Anal spines: 3-4; Anal soft rays: 21-23. Body roundish in young, becoming ovate with age. Forehead without rostral prominence even in adult. Caudal peduncle relatively deep and compressed without dorsal and ventral precaudal depressions. Four or 5 bony plates are on each side of the caudal peduncle. Posterior 3 or 4 plates with feeble triangular keels. |
| Biology: |
Often found in groups in shallow, surge rocky areas (Ref. 9710). Anterolateral glandular groove with venom gland (Ref. 57406). |
| IUCN Red List Status: |
Data deficient (DD); Date assessed: 07 May 2010 Ref. (130435)
|
| Threat to humans: |
venomous |
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