The split-level hogfish, Bodianus mesothorax, is a species of wrasse native to the western Pacific Ocean and the eastern Indian Ocean. They can be found on reefs at depths of 5 to 40 m (16 to 131 ft), though rarely below 20 m (66 ft). Juveniles inhabit caves in the reef. Adults of this species clean other fish by eating parasites on the body of other reef fish. This species can reach a length of 25 cm (9.8 in). This species can be found in the aquarium trade.