Spirocharis acuta is an aquatic mollusk belonging to the genus Spirocharis, and its scientific name is **Margarya oxytropoides**. It has the characteristics of large shell, short conical shape or nearly spherical shape, firm and tight shell, green brown or brown, seven spiral ribs (including two original spiral wheels), full expansion, four spiral ribs, and the spiral ribs on the early four spiral wheels are always smooth and unadorned.