The Convict Tang

From USFWS National Wildlife Refuge System:

The convict tang has the Hawaiian name “manini”. It’s a member of the surgeonfish family, named for the sharp blades on either side of its tail. The fish is just one of the tremendous natural resources protected by Papahānaumokuākea Marine National Monument in the Pacific.(https://www.fws.gov/refuge/hawaiian_islands/) Photo by Dan Clark, USFWS