Blue Parrotfish (IMAGE) University of Exeter Caption Blue parrotfish (Scarus coeruleus), one of the largest herbivorous fishes on Caribbean coral reefs. Credit Photograph courtesy of Evan D’Alessandro. Usage Restrictions Photographer must be credited License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.