Mytilus
Mytilus edulis
Bivalvia
A class in the phylum MOLLUSCA comprised of mussels; clams; OYSTERS; COCKLES; and SCALLOPS. They are characterized by a bilaterally symmetrical hinged shell and a muscular foot used for burrowing and anchoring.
Gills
Mollusca
A phylum of the kingdom Metazoa. Mollusca have soft, unsegmented bodies with an anterior head, a dorsal visceral mass, and a ventral foot. Most are encased in a protective calcareous shell. It includes the classes GASTROPODA; BIVALVIA; CEPHALOPODA; Aplacophora; Scaphopoda; Polyplacophora; and Monoplacophora.
Mytilidae
A family of marine MUSSELS in the class BIVALVIA.
Ciliophora
Microsporea
Animal Shells
Perna
Atlantic Ocean
I'm sorry for any confusion, but the term "Atlantic Ocean" is a geographical term referring to one of the world's five oceans, covering approximately 20% of the Earth's surface and separating the continents of Europe and Africa to the east from those of North and South America to the west. It doesn't have a direct medical definition, as it is not a medical term.