1, the definition of different: fresh shell is a fresh large shell within a round muscle; scallop is scallop genus of bivalve mollusks, there are about 400 species.

2, different nutritional value: fresh shellfish rich in protein, carbohydrates, riboflavin and calcium, phosphorus, iron and other nutrients; scallop is a set of food, medicine, tonic for the integration of important aquatic food, scallop edible part of the main nutrients for the protein, and fish, shrimp similar to the scallop columns of the dried products known as dried scallops for the valuable sea treasures.