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Bellamya japonica
Image courtesy of Amy Benson, US Geological Survey
Bellamya japonica
Taxonomic Group: Mollusks-Gastropods


Bellamya japonica is commonly known as the Japanese Mystery Snail. It is a large freshwater snail found in lakes, ponds, or slow-flowing rivers with sandy to muddy substrates. Its native and introduced ranges are poorly known because of its taxonomic confusion with the Chinese Mystery Snail, B. chinensis. However, it is known to be native to Japan, Korea, and Taiwan. Introduced estuarine records are from the Connecticut River, Connecticut and the Potomac River, Virginia. This snail is abundant in some regions and may compete with native snails, but little is known about its ecological impacts.

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Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT (2018)
National Exotic Marine and Estuarine Species Information System.
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Marine Invasions Lab
Smithsonian Environmental Research Center

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