Redtail Triggerfish - 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.