Acanthurus reversus Randall & Earle, 1999
photo by Randall, J.E.

Family:  Acanthuridae (Surgeonfishes, tangs, unicornfishes), subfamily: Acanthurinae
Max. size:  34 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 4 - 15 m
Distribution:  Eastern Central Pacific: Marquesas Islands.
Diagnosis:  Dorsal spines (total): 9-9; Dorsal soft rays (total): 24-25; Anal spines: 3-3; Anal soft rays: 23-24. Caudal concavity 3.35-4.7 in SL; brown in life, the posterior half of body sometimes abruptly paler, with an elongate orange spot extending posteriorly from upper end of gill opening, the posterior half enclosed by a broad, deep blue band that extends beyond tip of pectoral fin; dorsal and anal fin base with a faint orange line, the soft portion of the dorsal with three dark longitudinal bands on outer one-half of fin, the anal fin with a narrow blue margin; caudal fin pale yellow with a broad black posterior border that narrows as it extends onto elongate lobes of fin; outer one-third of pectoral fins abruptly white; juveniles bright yellow with blue margins on dorsal and anal fins (Ref. 41630).
Biology:  Found inshore (Ref. 41630). Feeds on filamentous algae (Ref. 89972).
IUCN Red List Status: Least Concern (LC); Date assessed: 04 May 2010 Ref. (124695)
Threat to humans:  harmless
Country info:   

Entered by: Capuli, Estelita Emily - 26.02.02
Modified by: Valdestamon, Roxanne Rei - 21.10.14

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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