Claudio Contreras,Claudio Contreras / Long-beaked Coralfish (Chelmon rostratus) eye, Inanuran Island, Danajon Bank, Central Visayas, Philippines, April

Juergen Freund / Longnose hawkfish (Oxycirrhites typus) camouflaged amongst coral, Indo-pacific.

Georgette Douwma / Longnose hawkfish (Oxycirrhites typus) resting in Gorgonian coral. Red Sea, Egypt.

Georgette Douwma / Longose hawkfish (Oxycirrhites typus) resting on Gorgonian coral. Red Sea, Egypt.

Fred Bavendam / Grey Reef Shark (Carcharhinus amblyrhynchos) feeding on a large baitfish ball, Solomon Islands, South Pacific

Fred Bavendam / Grey Reef Shark (Carcharhinus amblyrhynchos) feeding on a large baitfish ball, Solomon Islands

Michael Pitts / Longnose hawkfish {Oxycirrhites typus} on fan coral, Papua New Guinea

David Hall / Longnose filefish feed on coral (Oxymonacanthus longirostris) Fiji.

Georgette Douwma / Longnose hawkfish in Seafan coral {Oxycirrhites typus} Sulawesi, Indonesia

Georgette Douwma / Longnose hawkfish on coral, Red Sea.

Pascal Kobeh / Ocan Pacifique - Nouvelle caldonie - Gros plan de la tte d'un nason licorne (Naso brevirostris) de nuit Pacific Ocean - New Caledonia - A close-up of the head of a spotted or longnose unicornfish (Na...

Magnus Lundgren / Wild Wonders of China / Spotted unicornfish (Naso brevirostris) Green Island, a small volcanic island in the Pacific Ocean , Taiwan