Moorish idol (Lazlo Ilyes / CC BY)
The Moorish idol (Zanclus comutus) is a common reef fish with a disk-shaped, compressed body. The flanks are banded black and white or yellow. The dorsal fin is prolonged into a trailing filament. The Moorish idol can reach a maximum length of about 16 centimeters (6.3 inches).
Inhabits the Indo-Pacific Ocean.