---

They are uniformly blue with a yellow spot on their heads that fades as they age. They average 30–75 cm in length with a maximum length of 1.2 m. They develop a large "beak" like other parrotfish that is used for scraping algae and small organisms from rocks.

The blue parrotfish is a member of the parrotfish genus Scarus. It is found on coral reefs in shallow water in the tropical and subtropical parts of the western Atlantic Ocean and the Caribbean Sea. 

Their diet consists of small organisms found in the sand and algae that they scrape off rocks. They spend 80% of their time searching for food.