Slender Walker
Pomatiopsis lapidaria (Say, 1817)
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Mollusca |
| Class | Gastropoda |
| Order | Littorinimorpha |
| Family | Pomatiopsidae |
| Genus | Pomatiopsis |
| Species | Pomatiopsis lapidaria (Say, 1817) |
Description
Diagnostic characters
- Ecological class
- Stygoxene
- Realm
- Aquatic
Distribution
Range
Known from three counties across two states.
Continent
North America
Country
United States
States and provinces
Illinois, Tennessee
Counties
- Illinois
- St. Clair
- Tennessee
- Franklin, Overton
Conservation and management
IUCN Red List
LC Least Concern
Assessed in 2017.
NatureServe
G5 Secure
National ranks
- Canada
- N2 Imperiled
- United States
- N5 Secure
Subnational ranks
- Quebec
- SNR Unranked
- Ontario
- S3 Vulnerable
- New Jersey
- SNR Unranked
- South Dakota
- SNR Unranked
- Indiana
- SNR Unranked
- Missouri
- S3 Vulnerable
- New Mexico
- SNR Unranked
- Michigan
- SNR Unranked
- New York
- S3 Vulnerable
- Virginia
- S4 Apparently Secure
- Delaware
- S1 Critically Imperiled
- Alabama
- S4 Apparently Secure
- Massachusetts
- S1 Critically Imperiled
- Illinois
- SNR Unranked
- West Virginia
- S3 Vulnerable
- Pennsylvania
- S2 Imperiled
- Kansas
- S1 Critically Imperiled
- Kentucky
- S4 Apparently Secure
- Ohio
- S2 Imperiled
- Oklahoma
- SNR Unranked
- Connecticut
- S1 Critically Imperiled
- North Carolina
- SU Unrankable
- Iowa
- SNR Unranked
- Louisiana
- SNR Unranked
- Maryland
- SNR Unranked
- Wisconsin
- S4 Apparently Secure
- Tennessee
- S5 Secure
- South Carolina
- SU Unrankable
- Texas
- SU Unrankable
State and federal status
Not listed under the U.S. Endangered Species Act
References
- Lewis, J.J., Moss, P., Tecic, D. & Nelson, M.E. 2003. A conservation focused inventory of subterranean invertebrates of the southwestern Illinois karst. Journal of Cave and Karst Studies 65: 9–21.
- Lewis, J.J. 2005. A biological inventory of caves of the Cumberland Plateau. Tennessee Chapter Cave Program, The Nature Conservancy, Nashville, Tennessee, USA. 156 pp.
How to cite this account
Pomatiopsis lapidaria (Say, 1817). Cave Biology Data Portal, account SP-2840. https://cavebiology.org/species/pomatiopsis-lapidaria/ (accessed 7 September 2026).
Data sources and funding are listed in the Acknowledgments.
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