Pair of Racoon Butterflyfish, Chaetodon lunula, Christmas Island, Australia

racoon butterflyfish chaetodon lunula christmas island australia crescent masked butterflyfish lunule butterflyfish halfmoon butterflyfish moon butterflyfish butterflyfish fish coral fish chaetodontidae yellow chaetodon lunulatus geography nature sea ocean sealife marine wildlife indian ocean underwater no people two animals full length side view close up blue background horizontal n/a n/a rm