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Prionurus scalprum Valenciennes, 1835 Scalpel sawtail |
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photo by
To, W.-L. |
| 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 | |||