Ctenochaetus strigosus 

It was first formally described in 1828 by the English zoologist Edward Turner Bennett asAcanthurus strigosus, with the Sandwich Islands designated as its type locality. In 1884, Theodore Gill classifiedA. strigosusintothe newly established monotypic genusCtenochaetus; this means that, as the monotype, it serves as the type species of that genus. The generaCtenochaetusandAcanthurusconstitute the tribe Acanthurini, one of three tribes within the subfamily Acanthurinae—one of the two subfamilies of the family Acanthuridae.

Etymology

The specificname of Ctenochaetus strigosusis "strigosus," whichmeans "slender"; this is likely a reference to this fish's numerous slender, hair-like teeth.

Definition

The dorsal fin of Ctenochaetus strigosusis supported by 8 spines and 25 to 28 soft rays, while the anal fin is supported by 3 spines and 22 to 25 soft rays. Its body is laterally compressed, and it has a small mouth. Its general coloration is purplish brown, with thin, longitudinal light blue stripes and a yellow ring around the eyes. The published maximum standard length for this species is 15 cm (5.9 inches). 

 Distribution and habitat

Ctenochaetus strigosusis endemic to the HawaiianIslands and Johnston Atoll in the U.S. Minor Outlying Islands. It is a benthopelagic species found at depths ranging from 1 to 113 m (3 ft 3 in to 370 ft 9 in) on coral, rock, and rubble; it lives solitary and feeds by sifting food such as diatoms and algae through its bristle-like teeth.