Rhinecanthus abyssus is a species of triggerfish found in the West Pacific Ocean, where known from Sulawesi in Indonesian and around the Ryukyu Islands of Japan. It is found at depths ranging from . It is the most recently described of 7 species in the genus Rhinecanthus. Behavior Little is known about the behavior of this species presently. References Taxa named by Keiichi Matsuura Fish described in 1989 Balistidae