Differences in appearance: mole cricket shrimp maximum body length of 7 centimeters, ordinary between 5-6 centimeters; from the appearance, mole cricket shrimp between shrimp and crab. And pippi shrimp generally refers to the mouth shrimp mayfly, the body is narrow, long, cylindrical, slightly flattened, wide abdomen, the head thoracic armor in front of the eye joints and tentacle joints that can move.

Living environment is different: mayfly shrimp more inhabited in the silt beach, burrow was "Y" shape, while the skin shrimp live in the shallow sea sandy bottom or muddy sand bottom "U" shaped burrow.