The black line of the outer ring, the black part of the meat and shell of the razor clam.

After the razor clam is blanched, the shell will be separated from the meat, and there is a narrow black film outside the meat, which is almost separated from the meat at this time. Peel it off.

Lamarck is the general name of valvulobranchial mollusks of Veneroida, also known as the emperor, the son, the bamboo locust and the duckling. The shell is long, nearly columnar or oval, and the two shells are equal. China is rich in razor clam, which is distributed in the north and south coasts.

Pork can be eaten raw or processed into dried and oil. China has a long history of aquaculture, with the largest output in Fujian and Zhejiang, as well as artificial aquaculture.