Reef Triggerfish (Rhinecanthus rectangulus) タスキモンガラ – size 25cm – Humuhumunukunukuapua’a
This is the state fish of Hawaii, where it is known as a Humuhumunukunukuapua’a. It does not seem as common in Japan as in Hawaii. They are shy and like to hide in holes, where they lock themselves in with their spine. Amami 2018