Bellamya chinensis: Chinese Mystery Snail
The Chinese mystery snail is a freshwater gastropod introduced to the United States via aquarium trade. It is a large snail that may reach a shell length of up to 70 mm. The shell is globose and has 6-7 whorls that are convex and have a clear suture. Mature snails have olive green, greenish brown, brown, or reddish brown shells. The outer lip has a black coloring. The Chinese mystery snail has a concentricall marked operculum, or "trap door," that can close when water quality is not sufficient.
For more information about the Chinese mystery snail identification, please visit:
- Global Invasive Species Database
- Freshwater Gastropods of North America
- USGS Nonindigenous Aquatic Species (NAS)
For more information about the Chinese mystery snail best management practices, please visit: