The Humphead wrasse or (Cheilinus undulatus) is the largest living member of the family Labridae. The males reaching 2 m in length, while females no more than 1 m. The humphead wrasse has specific distinctive thick, fleshy lips and a hump that forms on its head above the eyes, becoming more prominent as the fish ages. Males have colour range from a bright electric blue to green, a purplish blue, or a relatively dull blue/green.
