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
Ranks looked up 2 July 2026. Conservation status changes, and a rank here is as current as that date and no more.
State and federal status
Not listed under the U.S. Endangered Species Act.
References
- Lewis, J.J. 2005a. A biological inventory of caves of the Cumberland Plateau. Tennessee Chapter Cave Program, The Nature Conservancy, Nashville, Tennessee, USA. 156 pp.
- 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.
This account was last revised 6 September 2026. Conservation ranks were looked up 2 July 2026.
How to cite this account
Data sources and funding are listed in the Acknowledgments.
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