The Belon oyster is a type of flat oyster, scientifically known as *Ostrea edulis*. It is primarily found in the waters of France, particularly in the Belon River, which is where it gets its name. This oyster is known for its unique, rich flavor and is often considered a delicacy in gourmet cuisine. Belon oysters have a distinctive, rounded shape and a smooth, dark shell. They are typically served raw on the half shell, often accompanied by lemon or mignonette sauce. Due to their specific habitat and growing conditions, they are highly sought after and can be more expensive than other oyster varieties.