River crab may refer to: Chinese mitten crab, Eriocheir sinensis, sometimes called the Chinese River Crab Potamonautes perlatus, the Cape river crab of South Africa Potamonautes reidi, Reid's river crab Potamonautes sidneyi, the Natal river crab of South Africa Liberonautes grandbassa, Grandbassa river crab Liberonautes lugbe, Lugbe river crab Liberonautes nanoides, dwarf river crab Other species of freshwater crab River crab (Internet slang), also often referred to as the doctrine of "Harmonious society", is a euphemism for Internet censorship in the People's Republic of China and a form of protest against such censorship
See also Hexie (disambiguation)