Xanthichthys mento

Xanthichthys mento, the redtail triggerfish, blue-throat triggerfish, or crosshatch triggerfish, is a species of triggerfish from the Pacific. It inhabits outer-reef areas at depths of 6 - 131 m, and feeds on zooplankton. Xanthichthys mento grows to a size of 29 cm in length and occasionally makes its way into the aquarium trade.