WATCH LIST

Chinese Mystery Snail

Freshwater Snail

Cipangopaludina chinensis

About

Description

C. chinensis size range can vary, but when fully developed, it can grow up to 6.5 to 7cm long, with a thick and spherical shell. The shell has 6 to 7 whorls and is olive green to greenish or reddish brown. The shell is narrower at the tip. 

Key Identification Features:

Range from .5 cm to 7 cm, 6.5 to 7cm long when fully grown Thick, spherical shell with 6 to 7 whorls. Olive green to greenish or reddish brown. Narrower tip on shell.

Habitat and Impact:

C. chinensis thrives in slow-moving freshwater habitats at depths of less than 3 meters. It can be found in various substrates including mud, loam, sand, and gravel. This species can significantly impact its environment by affecting the diversity of algae, altering water quality, and limiting the food supply for native snail species, ultimately leading to a decline in their populations. Additionally, C. chinensis may prey on fish eggs, which reduces the survival rates of those fish. Moreover, it can clog water pipes and removing it can be both costly and time-consuming.

Pathway:

This snail is native to east Asia and may have been introduced through the aquarium trade or as food.

Interesting Fact

By closing the opening of their shell, adults can survive for at least 4 weeks out of water.

Stewardship Actions

When boating, fishing, or recreating on a body of water with C. chinensis, ensure your gear and watercraft is clean. This prevents the spread of the snail through any young that may be attached to gear and equipment. Don’t let any aquarium animals loose into a waterbody. If you are unable to care for your aquarium animal, rehome it, return it to the retailer from which it was purchased or, if necessary, consider humane euthanasia.