2. Razor clam is a kind of marine shellfish. Molluscs. There are two shells, long and narrow in shape, with egg-yellow outside and white inside. They live in coastal seawater and can also be cultured artificially, with delicious meat. There are cricket and cricket. In Minnan dialect, the pronunciation is similar to "Tan", and in Ou dialect, the pronunciation is similar to "Qing". Razor clams are common in intertidal sediments (especially in temperate zones). The shell is long and narrow, razor-shaped, up to 20 cm (8 inches). Axes are big and active, and can move up and down quickly in caves, and quickly shrink into caves when they are frightened. Feed food particles in seawater with a short tube. Some species can swim short distances by spraying water through water pipes. The pods along the Pacific coast of North America don't live in fixed caves, but in the quicksand of the beach that is constantly washed away by the waves.