Crab, also known as crab, is an arthropod, which is found in both fresh water and salt water and can be eaten. & ltP> China is rich in crab resources, with about 600 species, including Portunus, Blue Crab, Frog Crab, Mian Crab, Guan Gong Crab, Steamed Crab, Jade Crab, Rhombus Crab, Fan Crab, Monk Crab and so on. Especially freshwater river crabs in coastal provinces, including hairy crabs and mitten crabs. The historical record of crabs in Yangcheng Lake has been introduced as follows in the book Crab Classic written by Fu Jian in the Song Dynasty: "There are crabs in all counties of Jiangsu and Zhejiang, and there are many in Suzhou." Among them, the Wu Tang crab in Yuzhou, which is located on the bank of Yangcheng Lake, is more delicious, and the fattest one among them, according to Mo Dan's Suzhou Fu, says, "He has a catty". A big crab weighs one kilogram. & ltP> During the reign of Qing Gan Jia, the section "Fried Crabs" in Jia Qing Lu written by Suzhou introduced several kinds of crabs in Suzhou, including "lake crab" in Taihu Lake, "Purple Bearded Crab" in Hufen Lake of Wujiang, "Golden Clawed Crab" in Changshu and "Weichi Crab" in Yuzhou Village of Kunshan. Yuzhou Village is now Chenghuangmiao Village in Zhoushi Town. Weichi Gong, a famous Tang Dynasty soldier, was named Lou Hou, who went there to build an army and open up wasteland to build water conservancy projects. In order to commemorate Wei Chi, later generations established Jing Yun Dawang Temple and named the village Weizhou Village. There are 72 ponds in the village, collectively referred to as Chenghuangtan, which are rich in clear water hairy crabs, namely "Weichi Crab". There are also several introductions to crabs in<P>'s Notes on Clearing Barn. There is a kind of "long crab", which is produced in Yanji, Northeast China. "Its shell diameter is only two inches, but its face is four or five feet long. The muscles of each foot are enough for one or two people to eat, and its meat is more beautiful than ordinary crabs. " There are "money crab" and "little crab", which are named after the shape of money. "In the salty fresh water room, there is a black paste that can be pickled." There are also "crickets" and "a kind of sturgeon, which are edible in coastal sediments. The shell is round like an ordinary crab, and the back feet are flat and long without claws, which is the same as that of the swimming crab. " Fujian people call it "blue crab", which is more expensive than Portunus, and the custom also calls Portunus "fish". There is a kind of "tiger sturgeon", which is produced in Fujian. "The tiger head painted on the shell door is dark red, many-hued, and some are inlaid into wine vessels, and the meat is thick and tasteless." Nantong and Rugao also have it, commonly known as "Guan Gong Crab". There is a kind of "Chao Zhao", commonly known as "Chao Zhao", because it is as small as a dragonfly, with a white shell, drifting with the tide, with its back facing outwards and holding its claws without any abnormal period. There is also a "hermit crab" that looks like a crab. "The front bucket has armor, and the back bucket is a soft body. It often requires an empty shell to live in, and the abdominal cavity becomes spiral to match the shell, so it is also called snail crab or resident shrimp. "The first pair of feet are big claws, which are used to catch food and block the shell. There are many kinds, including those living in wooden caves and sponges. " & ltP> "Hermit Crab" is called "Crab Slave" in Cihai. All larvae live freely, and adults are parasitic. "It is distributed in shallow water with its host."<P> The mammal civet has a name called "crab monk", which carries the name of crab, but it is not a crab family. The way to eat crabs in<P> ancient books was first seen in the Book of Rites Erya and Qi Yaomin's Book by Jia Sixie in the late Wei Dynasty. Besides steaming, frying, Lamian Noodles and drunkenness, pickled crabs are also introduced in detail. In the book Crab Classic, Jun Fu not only collected all kinds of eating methods, but also introduced meat picking, cooking and oil refining, which was delicious. Song people are as tall as a sun, and based on the Classic of Crab, he wrote a book "A Brief Introduction to Crab", which is divided into four volumes, with the word "crab" as the title, volume one as the original crab image, volume two as crab with crab products, volume three as crab tribute and volume four as crab elegance.