1, grain: the grain of the shell of the mussel is clear, the nose meat grain is also more regular; water mussels are messy grain, not clear.
2, color: elephant mussels lighter color, white-based, mussels deep color, mussels shell full, not thick, but thicker than the water mussels.
3, mussel shells: mussels shells small, thick and hard, long and fat nose. Water mussels are shells large, thin and brittle, touch the nose, easy to shrink and become very short.