The Titan Triggerfish has a heavily scaled head and body. There is a deep groove in front of both eyes and about five rows of spines on either side of the caudal peduncle.
This species is distinctively coloured. The scales have dark centres. There is a black region with yellow spots covering the eyes and extending to the pectoral fin bases. The dorsal and anal fins have black margins.
The Titan Triggerfish is the largest triggerfish species, growing to 75 cm in length.
This fish can be aggressive when guarding its nest. Randall (1997) states that three divers were attacked by a Titan Triggerfish on one dive.
This species usually occurs on coral reefs in tropical waters of the Indo-West and Central Pacific.
