1. True loach: long cylindrical body, flat tail, horseshoe-shaped lower mouth, round tail fin, small scales, buried under the skin. The back and back of the body are gray-black with small black spots;
2. Ponzi: distributed in the middle and lower reaches of the Yangtze River and its affiliated water bodies, with large scales and buried under the skin. The skin folds at the tail stalk are developed and connected with the tail fin, and the length and height of the tail stalk are similar;
3. Chinese loach: it is distributed in the middle and upper reaches of the Yangtze River, also known as steel loach. It has a long and sharp nose and mouth, lives in the slow waters at the bottom of gravel and often moves underwater;
4. Macular Misgurnus anguillicaudatus: distributed in the middle and lower reaches of the Yangtze River and its affiliated water bodies, living in the shallow waters of rivers and lakes, with small individuals and a small number;
5. China loach: It is distributed in the river south of the Yangtze River and lives in a slow river;
6. Misgurnus anguillicaudatus: distributed in the middle and upper reaches of the Yangtze River, from Hubei and Hunan to western Sichuan;
7. Northern loach: It is distributed in Mongolia, Inner Mongolia, Heilongjiang, Liaoning, Jilin and other places in China. It often inhabits still water or slow water at the bottom of sandy mud in rivers, lakes and swamps, and has strong adaptability. Large quantity, tender meat and certain economic value.