Genus Mytilus, also known as the blue mussel, is a species of marine bivalve mollusk found in coastal regions globally. The blue mussel is a popular food, and it is also used in aquaculture. Other common names for the genus Mytilus include the common mussel, the edible mussel, and the northern mussel. The genus Mytilus is part of the family Mytilidae, which is a group of marine bivalve mollusks that includes more than 30 species. These species are found in the Atlantic and Pacific oceans, and they are important for both commercial and ecological reasons. The synonyms for the genus Mytilus include mollusk, bivalve, and clam.