Parrotfish

Parrotfishes are named for their teeth which are formed into a beak. They are also often very brightly colored hence their name. Despite their rather fearsome looking beaks, most are herbivores and in keeping the reefs clear of algae provide a crucial function to the well being of the reef.

They are now accepted to be a clade in the tribe Cheilini,  commonly referred to as scarine labrids (subfamily Scarinae, family Labridae) and are closely related to wrasses.