Elephant mussel (scientific name: Panopea abrupta): The biological name is Pacific Submerged Mud Clam, also known as Emperor Clam and Goddess Clam, and the seafood commodity name is "Elephant Clam". The two shells are the same size, thin and brittle, and the front end has serrations, sub-shells and water pipes (also known as tentacles).

It is a high-grade seafood advocated by Chinese and Japanese in the Far East. Origin in the United States and Canada North Pacific coast. Because of its big and fleshy red tube, it looks like an elephant's nose (elephant pulling) and is called "elephant pulling clam". The locals don't eat mussels, so they grow well. However, since Asian immigrants began to prey on North American mussels, the local mussels have become endangered. 196 Artificial farming began in China market.