Home > Fishes > Butterflyfishes > Heniochus monoceros

Updated 4/7/2020

Family Chaetodontidae

INDO-WEST PACIFIC

Heniochus monoceros



Palau

MASKED BANNERFISH    Oni-hatatatedai

Uncommon and skittish, it prefers coral reefs & lagoons to 130 feet.  Feeds upon coral polyps.  Solid black scales, yellow anal fin, and interrupted black bar on face.  The black central bar in H. singularius is diffuse with white scale centers.  Attains 12 inches.  East Africa to Japan and Pitcairn Island, waifs at mesophotic depth in Hawai'i.