Balistes capriscus – Discover Fishes https://www.floridamuseum.ufl.edu/discover-fish/species-profiles/balistes-capriscus/
Gray Triggerfish Balistes capriscus When threatened, these distinctively shaped fish can slip into a small crevasse and erect their front dorsal spine, which locks it onto place, wedging them firmly into their hiding spot. They have sharp teeth for cutting into hard-shelled prey like sea urc
Atlantic Ocean from England and Ireland, south to Angola