Rhinecanthus rectangulus (Bloch & Schneider, 1801)
size of specimen: 15 centimeters (6 inches)
Triggerfish discourage predators by erecting two sharp dorsal spines: a large, thick one and a shorter spine behind it. The second spine is the "trigger"; it locks the first one in place.
Visit the Encyclopedia of Life collection to learn more about Wedge-tail triggerfish and other species featured in this exhibit.