Myra fugax is a species of crab in the family Leucosiidae.

Carapace is rounded, globose, with a finely granulate dorsal surface.

[2] The barnacles of the species Sacculina captiva are parasitic castrators of these crabs.

It is common along the coast of New Caledonia, Israel, South Africa, Egypt, Vietnam, Mozambique, Sri Lanka, India, Mauritius and Fiji.

[3] This species is typical of sandy substrates, at depths of 9 to 50 m.[2]