Sand fish, which mostly grow in the Yellow Sea, are also called push fish, quicksand fish, ground dragon fish, sky wave fish and light fish. The scientific name is "fine-tailed goby", which belongs to Perciformes, goby family and goby genus. It is an annual warm coastal bottom fish with strong adaptability to temperature and salinity. Its meat is tender, delicious and growing rapidly. It is distributed along the coast of China, especially Lianyungang. The goby is commonly known as "sand fish" in Lianyungang. Since ancient times, Lianyungang locals have the habit of eating sand fish, and Lianyungang folks have the saying "October sand mutton soup". There are detailed records in Haizhou Folklore, Cloud Glance, China's Famous Cookbook-Jiangsu Flavor, Haizhou Township Talk, Lianyungang Characteristic Culture, Jiangsu Aquatic Records, etc.

Chinese name Shaguang fish, alias Tulang fish, Shaguan fish, ground dragon fish, Tianlang fish, and the Latin scientific name of Guang fish is Mao Wei compound goby.