It's the "little drum-eyed fish", scientific name: flounder, which is a general name for the fish of the order Platyhelminthes, which includes the fish of the family Pomacentridae, Maximidae, Platyhelminthes, Soleidae, and Tongue Soleidae. The body of the migratory fish is flattened, and as it grows the eyes gradually move to the side of the head and lie flat on the sea floor. The words "partial mouth" and "flounder" describe the most prominent features of their bodies. There are many different kinds of flounder, but in Mushan, the best quality and most famous are the high eye flounder, stone flounder, and tooth flounder.

There are three types of fish in which the eyes grow on one side of the body: flounder, plaice and sole. The appearance of flounder and plaice is so similar that people call the one with both eyes on the left side flounder and the one on the right side plaice. People in the north call them partial mouth fish according to their appearance, and people in Jiangsu and Zhejiang call them flounder.

In ancient times, people believe that the turbot and plaice a left and a right arrangement of the eyes, is a fish a female and a male, this fish swim in pairs, the couple's eyes to observe the movement of the side, symbolizing harmony and love, concentricity, and will never be separated from the noble feelings, so there is a "phoenix amphibious fish flounder," the good news.

Hours of normal growth

But halibut (such as the partial mouth and bulging eyes) are not born that way. As newborns, they are completely different from their parents; their eyes are symmetrically placed on either side of their heads, and they live in the pelagic layer of seawater. When it reaches about 2-4 centimeters, the flounder suddenly changes its way of life; it begins to swim on its side and prefers to lie on the bottom for longer periods of time. Over time, the flounder's eye, which was resting on the sand, changed, and the soft band under the eye grew and began to move upward slowly, and finally came to be side by side with the eye above it, and at this time, the upwardly moving eye produced an orbital bone, and never moved its position again. Thus the strange appearance of both eyes growing on one side is formed, while the skin color on the upward side gradually becomes darker.