Boston lobster is the size of a magazine. The tail of Boston lobster is 5cm wide and 13cm long. Shrimp tongs are 8 cm long and 6 cm wide. Boston lobster, alias American crayfish, Boston lobster, etc. It is an arthropod, belonging to the genus Eriocheir, which lives in cold seas. Its meat is tender and smooth, and the product is high in protein and low in fat, containing vitamins A, C and D, calcium, sodium, potassium, magnesium, phosphorus and iron.