The crab in the picture should be the Chinese palm crab.

Chinese Hand Crab (Internet Picture)

Chinese Hand Crab is mainly found in river estuary areas, on river banks or streamside caves near the estuary. The subject is found in the mountains. Yes, but it should be relatively close to a river or stream. The Chinese hand crab prefers to live in places rich in minerals. It is bright red in color and is an important ornamental crab.