Scientific name: 
Heniochus chrysostomus
Distinctive features: 
White with three black bands: one on the head, mid-body, and upper rear body. Yellow snout.
to 18 cm (7 in.)

The pennant bannerfish is a white butterflyfish with three black bands, one through the eye, one through the dorsal and anal fin and the other along the upper rear of the body. The top of the snout is yellow. The tallest dorsal spines trails a father-like pennant.