Bursa trigger

The Bursa triggerfish (Rhinecanthus verrucosus) is a tropical marine fish known for its distinctive appearance and vibrant coloration, featuring a primarily dark body with intricate patterns and highlights in white, yellow, and blue. Originating from the Indo-Pacific region, this fish is characterized by its robust body, a prominent dorsal fin that can be "triggered" upright, and a unique, somewhat angular face. While it is recognized and appreciated by aquarium enthusiasts, it is not as widely popular or well-known in the aquarium hobby compared to some other triggerfish species, partly due to its size and specific care requirements.