Bluecheek butterflyfish, Masked butterflyfish (Chaetodon semilarvatus)

   A bright yellow body marked with thin vertical orange-brown wavy stripes. There is a grayish spot behind the eyes. The dorsal, anal, pelvic, and caudal fins are yellow. The dorsal and anal fins are rounded, their edges having a thin black-blue border. The tail has a vertical dark gray stripe separating the yellow portion from the clear edge.