[1] There are many characteristics which distinguish it from other hymenosomatid crabs, however: its telson is not distinctly trilobate, the eyes are not concealed from dorsal view by the anterior carapace, and male first pleopods have a simple structure.

[4][1] Many aspects of this species' ecology and natural history are still poorly understood, and there have been no documented instances of reproduction in captivity.

The first identified individuals were collected from a section of the Tha Chin River in the Nakhom Pathom province, where they were found on the roots of water hyacinths.

They are nocturnally active and forage for detritus on aquatic plants and mosses, although they may act as opportunistic carnivores.

[7] However, Danièle Guinot and Bertrand Richer de Forges studied specimens in 1997 and commented that the crabs may in fact represent a genus separate from Hymenicoides.