Different ways to eat: Mytilus is a common seafood, which can be used to make soup and stir-fry, while oyster sauce is a condiment, which is often used in clay pot rice, barbecue and other dishes.

Different shapes and morphologies: Mytilus is a bivalve mollusk with gray inside and blue edge and pearl luster. Oysters are seafood, the color is white, the meat is a little elastic like plastic, and the color is a little shiny.