Pervagor aspricaudus (Hollard, 1854)
Orangetail filefish
photo by Randall, J.E.

Family:  Monacanthidae (Filefishes)
Max. size:  13 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 1 - 25 m
Distribution:  Indo-West Pacific: Mauritius, Christmas Island, southern Japan, Marcus Islands, southern Taiwan, Australia, New Caledonia, Marshall Islands, Johnston Island, and Hawaiian Islands; distribution anti-equatorial. Recently reported from Tonga (Ref. 53797). Replaced by Pervagor marginalis in the Line and Marquesas Islands (Ref. 37816).
Diagnosis:  Dorsal spines (total): 1-2; Dorsal soft rays (total): 31-35; Anal spines: 0-0; Anal soft rays: 28-32. First dorsal spine strong. Posterior margin of ventral flap narrowly attached to large pelvic fin rudiment. Scale spinulation in midbody not closely packed. Body and head color variable; orange to brown iris; caudal fin yellow or orange; soft dorsal and anal fins clear to yellowish; spinous dorsal dark brown to brownish orange; pectorals clear. Numerous spots in head and body appear as dashes or lines Male scale ridge rugosities usually develop at about 60 mm SL.
Biology:  Inhabits clear lagoon and seaward reefs (Ref. 9710). Solitary among coral and rubble (Ref. 90102). Benthopelagic (Ref. 58302).
IUCN Red List Status: Least Concern (LC); Date assessed: 03 March 2015 Ref. (130435)
Threat to humans:  harmless


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