About Acanthurus leucopareius (Jenkins, 1903)
Acanthurus leucopareius has a dorsal fin supported by 9 spines and 25 to 27 soft rays, while its anal fin is supported by 3 spines and 23 to 25 soft rays. Its body is not particularly deep; body depth measures between 1.7 and 2.5 times the species' standard length. The caudal fin ranges from emarginate to lunate in shape, and lacks a white rear margin. A whitish band edged with dark brown runs from the dorsal fin origin across the operculum. This species reaches a maximum total length of 25 centimeters, or 9.8 inches.
Acanthurus leucopareius has an anti-tropical distribution in the Pacific Ocean. In the Northern Pacific, it occurs in the Marianas Islands, Marcus Island, southern Japan, and Hawaii. In the Southern Pacific, it can be found at New Caledonia, Rapa Iti, the Tuamotus, the Pitcairn Islands, and Easter Island. This species inhabits the surge zone in areas with boulders, at depths ranging from 1 meter to 75 meters (3 feet 3 inches to 246 feet 1 inch). It aggregates in small groups and grazes on filamentous algae.
