The elephant mussel, whose biological name is Pacific Diving Mud Clam, also known as Emperor Clam and Goddess Clam, is the largest known burrowing bivalve. Elephant drawn clam shell length of about 18-23 centimeters, is a large shellfish in the genus Clam. Shell thin and brittle, two shells are small, the front end of the shell with jagged teeth, dorsal shell of the dorsal, ventral and posterior end of the secondary shell, the water pipe is extremely developed, the water pipe can not be completely retracted into the shell, stay outside the shell of the part of the some up to more than 10 centimeters long, in the shape of an elephant trunk, so it is called the Elephant Potter Mussel.

The elephant mussel feeds on single-celled algae in seawater, and can also filter-feed on sediments and organic debris. Its main enemies are crabs, starfish, snails and flounders and other fish, adult shells inhabiting the seabed, has a strong protective capacity. Elephant-braided mussels in the first four years of rapid growth, age 1 shell length 5-6 cm, weighing 36-40 grams; age 2 shell length 8-10 cm, weighing 200-250 grams; age 3 shell length 10-12 cm, weighing 400-500 grams. With age, the shell growth gradually slow, but the soft body growth can still continue, life expectancy of up to more than 100 years.

The weevil mussel is mainly distributed in the United States, Canada east coast. Generally divided into mud mussels and sand mussels two kinds of mussels, in the sand growth of the mussels in the white neck, while in the mud growth of the mussels in the neck of the darker color. Elephant mussels have the advantages of large individuals, fast growth, delicious flavor, high economic value, eat less impurities and no odor of the sand mussels for the best.

Elephant-drawn mussels feed on single-celled algae in seawater, but also filter-feeding sediments and organic debris. Its main enemies are crabs, starfish, snails and flounders and other fish, adult mussels inhabiting the seabed, has a strong protective capacity. Elephant-braided mussels have the advantages of large individuals, fast growth, delicious flavor and high economic value. It should be noted that the mussel offal can not be eaten, because the mussel offal contains red tide toxin, which may cause food poisoning.