1. Mytilus edulis, also known as Qingkou, is a bivalve mollusk with a dark brown shell and lives on coastal rocks. Distributed in the Yellow Sea and Bohai Sea coasts of China. ?

2. Mytilus edulis is wedge-shaped, with tapered front end and wide and round back end. Generally, the shell length is 6 ~ 8 cm, and the shell length is less than 2 times of the shell height. Thin shell. The top of the housing is near the front end of the housing. The two shells are equal, symmetrical, and the surface is purple-black and shiny. The growth line is thin and obvious, and it grows annularly from the top.

3. Fresh mussels are popular seafood. It can be steamed or peeled and fried with other vegetables. It's delicious. Due to the large output of mussels, it is not easy to preserve after harvesting, and it has always been cooked and processed into dried mussels. Mytilus edulis has high nutritional value and certain medicinal value.

4. The output of mussels along the coast ranks first in China, and the quality is good. Some people call it "Dalian Four Seafood" together with kelp, Undaria pinnatifida and sea urchin. Mytilus, also known as sea red, belongs to the marine shellfish of Claphabranchia and Mytilidae. There are many kinds of mussels, most of which are purple mussels from Dalian.