SIZE: to 14 cm ( 5.5 in.)
DISTINCTIVE FEATURES: "Dirty" white head and diffuse central white bar. Black lip and ventral fins.
Of the lighter colored butterflyfish, the blacklip butterflyfish is the only one with black lips. The blacklip butterflyfish has a white to brown head with a wide, brown, diffuse, central bar. Its back half of the body and tail fin are brownish yellow in coloration.