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The Striated Surgeonfish (Ctenochaetus striatus) is a tropical fish species that is a member of the ‘Surgeonfishes’ family Acanthuridae. This species can be found throughout the Indo-Pacific region however is not known to occur in the Hawaiian, Marquesan and Easter islands and it is considered to be absent from Malden and Jarvis islands. The body is dark olive-brown in colour and there are small orange spots around the head. The pectoral fin is yellowish in colour and the caudal and ventral fins are brown. Each side of the caudal peduncle has sharp forward pointing erectile spines that fold down into a horizontal groove. It can be found occurring on coral reefs and lagoons and is generally solitary however may be found in small groups often with other surgeonfish species. This species is known to feed on blue-green algae, diatoms and various small invertebrates. The Striated Surgeonfish (Ctenochaetus striatus) grows to a maximum length of approximately 26cm.
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