Chevron Butterflyfish (Chaetodon trifascialis) ヤリカタギ
The Chevron Butterflyfish is said to feed almost exclusively on Acropora table corals. This one is an adult. Miyakojima
A juvenile Chevron Butterflyfish has a yellow tail and black on the back part of the body. It is also smaller. They like to hide in Acropora Antler coral. Amami