Native to Southeast Asia, Japan, and eastern Russia, they were sold in food markets in San Francisco, California, in the late 1800s. By 1965, the species was established on both coasts. The Chinese mystery snail was first recorded in the Great Lakes basin in the Niagara River between 1931 and 1942. It is now established in Lake Ontario and Lake Michigan drainages.
Currently it can be introduced by being released from aquariums and bait buckets and can be moved when attached to recreational gear such as boats and fishing tackle.
Chinese mystery snail and its Regulation
It is currently unregulated in Illinois. It is classified as a restricted species in Wisconsin.