Alex Mustard / Pair of a Honeycomb moray eels (Gymnothorax favagineus) on a coral reef with triggerfish schooling above. North Male Atoll, Maldives, Indian Ocean.

Alex Mustard / Shallow depth of field portrait of a White-eyed moray (Siderea thysoidea). Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.

Magnus Lundgren / Wild Wonders of China / Richardson's moray (Gymnothorax richardsonii) Shelter Island, Sai Kung archipelago, Hong Kong, China.

Alex Mustard / Blue ribbon eel (Rhinomuraena quaesita) male. Ambon Bay, Ambon, Maluku Archipelago, Indonesia. Banda Sea, tropical west Pacific Ocean.

Alex Mustard / Giant moray (Gymnothorax javanicus), Honeycomb moray (Gymnothorax favagineus) and Undulated moray (Gymnothorax undulatus) eels, four emerging from hole in coral reef. North Male Atoll, Maldives. India...

Alex Mustard / Honeycomb moray (Gymnothorax favagineus) on coral reef with Triggerfish (Balistidae) schooling above. North Male Atoll, Maldives. Indian Ocean.

Linda Pitkin / Bluefin trevally (Caranx melampygus) mixed-species foraging and hunting behaviour, with Giant moray (Gymnothorax javanicus). Shark Reef to Jolande, Ras Mohammed National Park, Egypt, Red Sea.

Linda Pitkin / Undulated moray (Gymnothorax undulatus) The Barge wreck, near Bluff Point, Gubal I., Gulf of Suez, Egypt, Red Sea.

Linda Pitkin / Undulated moray (Gymnothorax undulatus) The Barge wreck, near Bluff Point, Gubal I., Gulf of Suez, Egypt, Red Sea.

Linda Pitkin / Green moray (Gymnothorax funebris) Klein Bonaire, Bonaire, Leeward Antilles, Caribbean.

Jordi Chias / Honeycomb moray eel (Gymnothorax favagineus) under coral, Mozambique

Jordi Chias / Laced moray (Gymnothorax favagineus), Ari atoll, Maldives islands, Indian Ocean