As shown in the picture , ?

The goby family Gobiidae ? Acanthogobius? Acanthogobius ? fish

Below is the ? Spear-tailed goby ? Acanthogobius hasta (once known as the Spear-tailed Goby, Synechogobius hasta). Synechogobius hasta), commonly known as Push Wave Fish, Sand Stroll Fish, Ground Dragon Fish, Sky Wave Fish, Sand Light Fish

It is an annual warm-temperate offshore demersal fish with a strong ability to adapt to temperature and salinity. Its flesh is tender and flavorful, and it grows rapidly. It is distributed all along the coast of China, and is especially widespread along the coast of Lianyungang City. The spear-tailed goby is commonly known as the "Shagwang fish" in Lianyungang.

Neither can withstand the heat and high temperature of the south, but also can not tolerate the cold and frost in the north, only in this habitat. Lianyungang area moderate climate and unique geographic environment, so that the sand fish become tender skin thin unique fish species. Whenever it is cool in the fall, the fish dives into the silt after conception to lay eggs to avoid the cold. Only in the thick egg capsule protection in the sand light fish eggs, after hibernation saved, in the late spring season began to reproduce.