Shoal of Pyramid Butterflyfish, Hemitaurichthys polyepis, Christmas Island, Australia

pyramid butterflyfish hemitaurichthys polyepis christmas island australia butterflyfish fish coral fish chaetodontidae yellow sea fan seafan gorgonian fan coral coral reef coral reef anthozoans geography nature sea ocean sealife marine wildlife indian ocean underwater no people medium group of animals shoal full length side view wide angle horizontal n/a n/a rm