Halfmoon Triggerfish (Sufflamen chrysopterum) ツマジロモンガラ – size 22cm
A male Halfmoon Triggerfish diving for cover. They are very common by my house, but very shy. Males have a blue chest. Amami 2022
A female Halfmoon Triggerfish. The vertical bar behind the eye can sometimes be white. Amami 2023