micro crab

Vernacular name for the tiny freshwater crab Limnopilos naiyanetri Chuang and Ng 1991, a member of the family Hymenosomatidae, or false spider crabs. It's native to Nakhon Pathom province, southern central Thailand and its body achieves a maximum diameter of around 1 cm. Completely aquatic and apparently spends its entire life cycle in fresh water.