Rippled Triggerfish

Rippled Triggerfish (Pseudobalistes fuscus)

The Rippled Triggerfish, also known as the Blue Triggerfish, Blueline Triggerfish, or Yellowspotted Triggerfish, gets its name from a unique locking mechanism that secures its dorsal spine. A secondary spine keeps the main dorsal spine erect, allowing it to be lowered only when the trigger spine is moved. This feature serves a defensive purpose, making it harder for larger predators to swallow the fish. The spine also helps the fish lock itself into crevices, providing additional protection from threats. The Rippled Triggerfish has a characteristic triggerfish shape, featuring a laterally compressed body with high-set eyes positioned far back from its mouth. This eye placement offers protection when foraging among urchins and crustaceans. Its thick, leathery skin provides defense against spiny prey, while its relatively small mouth, equipped with strong teeth, delivers a powerful bite.