mudskipper, commonly known as jumping fish. It is about 1 mm long, with a flat side, a large cylindrical head and small eyes protruding above the top of the head. The body is blue-brown, and the dorsal fin is dark blue with white spots. It is an intertidal fish, and likes to burrow in the soft mud low tide area, crawl and jump in the mud, feed, and insert and catch it with bamboo tubes or baskets.

in his well-known essay "Hometown", Mr. Lu Xun wrote the scene of catching "fish jumping by the sea" by jumping in the soil. The mudskippers jumping with the tide in the dark there are not attractive, but they are delicious in seafood.

There is also a mudskipper named Ranhu, which is cold-resistant and heat-resistant. Besides breathing through gills, it can also use skin and oral mucosa as auxiliary breathing. After being lifted, it can last for 7-15 days without eating or drinking. The inspection of the mudskipper is very keen. One eye is dedicated to searching for food, while the other eye is vigilantly watching the possible enemy harm. Mud-coated fish is a kind of food with high protein, low fat and high vitamins.

There is also a legendary story about mudskippers.

It is said that at the end of the Southern Song Dynasty, the Song Dynasty lost its battle. Emperor Zhao Min and his ministers were chased by Yuan soldiers and fled to an island in Xiangshan. They came to a fisherman's house to beg for food. Due to years of war, pirates went everywhere, and the countryside was barren, the owner could not provide food to entertain the guests. At that time, I was in a hurry, so I had to cook the newly caught mudskipper in a cold water pot together with the tofu bought on the street. The water temperature is gradually rising, but the tofu is cold, and the mudskipper drills into the tofu when it is hot. After being cooked, the owner lifted the lid but the fish disappeared. Only white tofu floats in the clear soup. The host mistakenly thought that the fish had escaped, and it was not until the meal that he found that the fish were all hidden in the tofu block. Zhao Min thought this dish was delicious after eating it, so he asked the host, who had to tell the truth. On a whim, Zhao Min was given the name "Imperial White Jade Soup".

Bullet-coated fish is not only a delicious food on the table, but also an ideal medicinal diet. Slippery saliva on the skin of bullet-coated fish has a strong bactericidal and anti-inflammatory effect. Eating mudskipper regularly can help treat infectious hepatitis, hemorrhoids, furuncle and tinea. It also has certain curative effect on fever, edema and diarrhea. Mud-coated fish is especially suitable for the elderly. Because it contains less fat and less cholesterol; And it contains a substance called "16-decenoic acid", which has the function of protecting blood vessels and is an ideal food for patients with hypertension. In some places, the mudskipper is regarded as a rich dish, which is regarded as the extreme of vegetarian dishes and used to worship the elderly.