A marine ray-finned fish, a member of the subfamily Microcanthinae, part of the sea chub family Kyphosidae. It is endemic to southern Australia, where adults can be found on rocky reefs to depths of 120 m (390 ft). Juveniles are found in much shallower waters of coves and estuaries. This species grows to 40 cm (16 in) TL. This fish is commercially important and can also be found in the aquarium trade. This species is the only known member of the genus Tilodon.[3]