Bannerfish are easily recognisable by the banner-like dorsal fin (hence sometimes called the Longfin) which makes them look a little like a Moorish Idol, though they are in the Butterflyfish family.
Bannerfish are easily recognisable by the banner-like dorsal fin (hence sometimes called the Longfin) which makes them look a little like a Moorish Idol, though they are in the Butterflyfish family.
