Monopterus albus is 40 yuan a catty. Monopterus albus: Also known as Monopterus albus. The body is slender and snake-shaped, with a body length of about 20-70 cm and a maximum length of 1 m, with a flat front and back and a thin tail. The head is long and round, the mouth is big, the end position is slightly prominent, and the lips are well developed. There are fine teeth on the upper and lower jaws and flap bones. Eyes are small and covered with a thin layer of skin. The head is thick and the tail is thin, and the body surface is protected by smooth mucosa, without scales and yellow brown. The body has irregular black spots, and the underdeveloped fins basically disappear. There is only one thorn in the whole body, and there is less meat. The meat is tender and delicious. Extended data: Monopterus albus is slender, cylindrical and snake-shaped, with a body length of about 20-70cm and the longest 1 m. The body is flat before and after, and the tail is thin. The head is enlarged, long and round, and the cheeks are raised. Big mouth, end position, short and flat kiss; The mouth is open at the snout and obliquely cracked; The upper jaw is slightly prominent and the lips are quite developed. There are fine teeth on the upper and lower jaws and flap bones. Eyes are small, hidden under the skin, covered with a thin layer of skin. The branchial fissure is on the ventral side, and the left and right branchial holes meet on the ventral side in an inverted "V" shape. The branchial membrane is connected with the branchial isthmus, and the gills often degenerate, and the oropharyngeal cavity and intestine replace breathing. There is no structure such as swim bladder to assist breathing, but there is a gill hole in the abdomen. The epidermis and intestines on the inner wall of the mouth are responsible for breathing, and they can breathe directly from the air. The body is bare, lubricated, scaleless and rich in mucus; There are no pectoral fins and ventral fins, dorsal fins and gluteal fins degenerate, only skin folds are left, and there are no soft thorns, all of which are combined with caudal fins. When alive, the body is brown, the lateral line is complete, and it goes straight along the center of the body. The back is yellowish brown, the abdomen is pale, and there are irregular black spots all over the body. The body color of Monopterus albus often varies with the living environment. The body is eel-shaped, with spineless fins, slender dorsal and anal fins, connected with caudal fins, no ventral fins, or as small as throat. Habitat Monopterus albus is a tropical warm temperate fish, which lives in benthic organisms and has strong adaptability. Living underwater, it mainly inhabits muddy waters such as paddy fields, lakes, ponds, rivers and ditches, and even swamps, floodplains or wetlands. The length of the Monopterus albus hole drilled in the west is about three times its body length, and the caves are curved and crossed. There are generally more than two caves in each cave. The exit of the cave is often close to the water surface, so that it sticks its head out to breathe air.