Black-lipped mussel scientific name: Brachidontes pharaonis, belonging to the genus Mussel of the clam clam clam family, the shell is medium in size (5-10cm long), oblong, thin but tough; The top of the shell is blunt, located at the front end, and the shell surface extends from the top of the shell to the ventral edge with fine concentric growth lines; the edge of the shell (lip) is dark black ("black lip" feature), and the inner surface of the shell is pearl luster (white or pale pink). Prefer tropical to subtropical coastal intertidal zones (high tide line to 5 m water depth), attached to rocks, coral reefs or artificial structures (e. g. piers).

It is a common marine shellfish that is loved by people for its delicious meat and rich nutritional value. Shells are wedge-shaped, with a black brown surface and a gray blue interior, giving them a pearl like luster. Usually inhabiting coastal rocks, especially in areas with rapid seawater currents and clear water quality. It has strong resistance to adverse environments such as red tide and sewage, and mainly feeds on organic debris and diatoms. The reproductive ability is strong, and female clams can lay up to 25 million eggs. Strong vitality and easy to cultivate artificially. In terms of consumption, the meat is delicious, rich in protein, essential amino acids, vitamins, and minerals, and is known as the egg of the sea.

The Mediterranean mussel (scientific name: Mytilus galloprovincialis) is a species of shellfish in the genus Mytilus. It is an invasive species in many parts of the world, but is also a common species in aquaculture. The Invasive Species Expert Group (ISSG) of the International Union for Conservation of Nature's Species Survival Committee is listed as one of the world's top 100 invasive alien species.