Sea oysters and oysters are different names for the same thing.

Oysters, also known as oysters, alias oyster yellow, sea oysters. In the classification of animals belongs to the class Valvularia, oyster family, Latin: Ostrea. in the coastal areas north of Jiangsu, Zhejiang and the Bohai Sea, people generally called: oyster or sea oyster; in Fujian coastal and Taiwan people called: oyster; and in the two Guang Dong and Hainan and other South China Sea waters of the people are called oyster.