The shell of white shrimp is very thin.
There are few pigment cells, the body is transparent at ordinary times, and the muscles are white after death.
Rice shrimp is very small, with a body length of only about 2.5 cm. The whole body is dark green with irregular brown stripes in the center of the back.
Shrimp is short and thick, and its whole body consists of head, chest and abdomen. The head and chest are connected together, and the back and sides are covered with a large piece of bone, which is called head breastplate or carapace. The head and chest are thick, the abdomen is thick, and the back is tapering.
Adult shrimp (crayfish alias) is about 5.6~ 1 1.9 cm long, dark red, with a nearly black shell and wedge-shaped stripes on its abdomen and back. Young shrimps are evenly gray, sometimes with black ripples. Long and narrow claws.