[1][2] The carapace of Phalangipus longipes is nearly as broad as long and can reach a length of one inch.

Ambulatory legs are cylindrical, smooth, very long and slender.

The first pair of leg is the longest, about six times of the length of the carapace.

[3][4] The barnacles of the species Sacculina granulosa are parasitic castrators of these crabs.

[5] This species is present in Northeastern and northern Australia, Indian Ocean, Sri Lanka, Andaman Sea, west Malay Peninsula, Strait of Malacca, China, Hong Kong, Taiwan, Singapore, Gulf of Thailand, Philippines and Indonesia.