The loach is known by different names in different places, for example, in southern China, the loach is called "fish loach", and in the Xinyang area of Henan Province, the loach is called "mud dogzi". In addition, the loach also has other aliases, such as "screwing ditch" and "mud ditch Lou Lou".

The loach is a loach of the genus Loach in the order Carpophagidae, the body of the loach is elongated, cylindrical, with a small head, a small mouth and small eyes.