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Marine spacies of Thailand

Species of Thailand

Greyface moray eel

Binomial name: Gymnothorax thyrsoideus, John Richardson, 1845

The greyface moray, freckled moray, slender moray, or white-eyed moray, Gymnothorax thyrsoideus, is a species of marine fish in the family Muraenidae.


The greyface moray is a medium-sized fish that can reach a maximum length of 66 cm, but the ones usually observed are rather 40 cm.

Its serpentine in shape body has a brown yellowish background color with variation of intensity from a moray to another and it is speckled with a lot of small dark spots.

The head is grey to brownish with distinctive white eyes.

Distribution & habitat

The greyface moray is widespread throughout the Indo-Pacific area from India and Maldives to Polynesia and from south Japan to Australia and New Caledonia.

This moray likes shallow and somewhat turbid waters from lagoons, protected reefs, areas rich in debris and wrecks from the surface to 35 meters deep.


The greyface moray is a carnivore and benthic fish. At day, it sits in a shelter often along with other morays and when night came it leaves its lair and actively hunt prey, consisting of small fish and crustaceans.

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Scientific classification

Gymnothorax thyrsoideus
Greyface moray eel

Greyface moray eel


Range map of Gymnothorax thyrsoideus in Thailand

Important note; our range maps are based on limited data we have collected. The data is not necessarily accurate or complete.

Special thanks to Ton Smits, Parinya Pawangkhanant, Ian Dugdale and many others for their contribution for range data.

It is free to use this map on various media. See the creative common license terms by clicking "CC" icon below the map. But remember, again; the map may not be accurate or complete.

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