Monday, May 14, 2007
Copper-banded butterflyfish (Chaetodon rostratus)
Adults reach about 20 cm in length and are popular aquarium fishes in marine aquariums. Unfortunately they don't survive well in captivity as they require a constant and quality supply of live coral polyps to thrive, so it's not kind to either buy them from shops or catch them from the wild.
Their long beak-like mouths are made for plunging deep into coral growth to pluck out small polyps and other sessile creatures. The fish's laterally-compressed body also allows it to dash easily into narrow crevices. At the end of its dorsal fin, a large eye-epot may help to confuse would-be predators that the fish is actually some other larger animal or make them aim for the tail instead of the real head.