Waterfall crab, a measure of cleanliness of water resources
Waterfall crab rock crab common name waterfall crabs, moutain crabs
The scientific name "waterfall crab" and "rock crab" are freshwater crabs found along basins, waterfalls or streams that flow from waterfalls, living under rocks on the banks of streams with strong currents, or digging holes on two sides of streams, holes about 0.5-1 meters deep.
Most of them are gray-black, brown-black, purple-black, yellow, which, depending on the type and environment in which the crabs live, is a measure of cleanliness of the water supply, due to the need for clean, subsistence-clear water.
Source: Canal Yard National Park - Khlong Lan National Park, Conservation Area Administration Bureau at 12 Nakhon Sawan
# Waterfall crab # Canal Lan National Park # Diamond Wall # National Park Service





























































































































