A Chinese Mystery Snail found at Gunners Lake in Montgomery Co., Maryland.

Photo by Aydin Orstan MBP List

Chinese Mystery Snails in Prince George's Co., Maryland (6/5/2013).

Photo by Jim Stasz MBP List

A Chinese Mystery Snail in Harford Co., Maryland (6/24/2014).

Photo by Jim Stasz MBP List

A Chinese Mystery Snail along the Susquehanna River in Harford Co., Maryland (7/1/2017).

View Record Details Photo by Bill Hubick MBP List

Chinese Mystery Snail in Frederick Co., Maryland (5/10/2020). (c) Jacob Malcom, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-sa/4.0/'>CC BY-SA</a>). (Photo ID: 292014 - Psn: 88)

Chinese Mystery Snail in Frederick Co., Maryland (5/10/2020). (c) Jacob Malcom, some rights reserved (CC BY-SA).

View Record Details Photo by Jacob Malcom via iNaturalist MBP List

Chinese Mystery Snail in Frederick Co., Maryland (5/10/2020). (c) Jacob Malcom, some rights reserved (CC BY-SA).

View Record Details Photo by Jacob Malcom via iNaturalist MBP List

A Chinese Mystery Snail in Anne Arundel Co., Maryland (10/26/2017). Determined by Aydin Örstan.

View Record Details Photo by Matt Grey MBP List

Chinese Mystery Snail in Prince George's Co., Maryland (8/31/2018). (c) Jenny Glenn, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>) (Photo ID: 1467521 - Psn: 200)

Chinese Mystery Snail in Prince George's Co., Maryland (8/31/2018). (c) Jenny Glenn, some rights reserved (CC BY-NC)

View Record Details Photo by Jenny Glenn via iNaturalist MBP List

Map Snapshot

24 Records

GA AL WA FR CL MO HO BA BC HA CE PG AA CV CH SM KE QA CN TA DO WI SO WO

Status

According to USGS (2017), non-indigenous occurrences of this species are as follows: "Mid-Atlantic Region: various ponds in Connecticut and Massachusetts; Potomac River, Maryland; Cocheco River, New Hampshire; Delaware River, New Jersey; Hudson River and Niagara River (1931), New York; the Catawba, Deep, Haw, Neuse, Roanoke, Yadkin, and lower Pee Dee rivers in North Carolina (B. Jones, pers. comm); Schuykill River and Susquehanna River, Pennsylvania; Annaquatucket River, Rhode Island; and a few isolated locations in Maine and Virginia."

Description

See USGS identification notes. Compare very similar Japanese Mystery Snail.

Where To Find

Potomac River, Susquehanna River

Seasonality Summary

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Resources

View at iNaturalist Search Google Images Search MBP Facebook posts

Citations

No citations linked for this taxon yet.

MBP marks as "Invasive" any taxon listed in the Maryland Invasive Species Council (MISC) list of Invasive Species of Concern in Maryland. You can read their criteria and review the lists here: https://mdinvasives.org/species-of-concern/. Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

A Chinese Mystery Snail found at Gunners Lake in Montgomery Co., Maryland. Media by Aydin Orstan.

Chinese Mystery Snails in Prince George's Co., Maryland (6/5/2013). Media by Jim Stasz.

A Chinese Mystery Snail in Harford Co., Maryland (6/24/2014). Media by Jim Stasz.

A Chinese Mystery Snail along the Susquehanna River in Harford Co., Maryland (7/1/2017). View Record Details Media by Bill Hubick.

Chinese Mystery Snail in Frederick Co., Maryland (5/10/2020). (c) Jacob Malcom, some rights reserved (CC BY-SA). View Record Details Media by Jacob Malcom via iNaturalist.

A Chinese Mystery Snail in Anne Arundel Co., Maryland (10/26/2017). Determined by Aydin Örstan. View Record Details Media by Matt Grey.

Chinese Mystery Snail in Prince George's Co., Maryland (8/31/2018). (c) Jenny Glenn, some rights reserved (CC BY-NC) View Record Details Media by Jenny Glenn via iNaturalist.