Unicorn fish, Shark Reef, Ras Mohammad, Egypt

Unicorn fish, Shark Reef, Ras Mohammad, Egypt, originally uploaded by Craig Grobler.

The unicorn fishes are 17 species of tropical marine surgeon fishes in the genus Naso. They are so named because of a spike that protrudes from its forehead; however some species have a bulbous protrusion rather than a pronounced spike, and some lack a spike altogether. Unicorn fishes usually have a pair of spines on each side of the tail shaft that are used for defence.

Shark Reef and Yolanda Reef are two reefs rising just off the Ras Mohammed coast. They are twin peaks of a single coral sea mount, separated from the mainland by a shallow channel.

Shark Reef is the more colorful and spectacular of the two reefs; with its wall and great marine life. Yolanda Reef is the larger of the two. Its name comes from a vessel which sank here in 1980.