Singley's Subterranean Discus Snail
Lucilla singleyana (Pilsbry, 1889)
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Mollusca |
| Class | Gastropoda |
| Order | Stylommatophora |
| Family | Helicodiscidae |
| Genus | Lucilla |
| Species | Lucilla singleyana (Pilsbry, 1889) |
Description
Diagnostic characters
- Ecological class
- Trogloxene
- Realm
- Terrestrial
Distribution
Range
Known from eight counties across two states.
Continent
North America
Country
United States
States and provinces
Illinois, Tennessee
Counties
- Illinois
- Monroe
- Tennessee
- Coffee, Cumberland, Franklin, Grundy, Marion, Sequatchie, Warren
Conservation and management
NatureServe
G5 Secure
National ranks
- Canada
- NU
- United States
- N5 Secure
Subnational ranks
- Ontario
- SU Unrankable
- West Virginia
- S2 Imperiled
- NE
- SX Presumed Extirpated
- Alabama
- SX Presumed Extirpated
- Arkansas
- SNR Unranked
- Iowa
- SNR Unranked
- Texas
- S4 Apparently Secure
- Virginia
- S3 Vulnerable
- Illinois
- SNR Unranked
- Indiana
- SNR Unranked
- Kentucky
- S2 Imperiled
- DE
- SNR Unranked
- Oklahoma
- SNR Unranked
- Pennsylvania
- S4 Apparently Secure
- Maryland
- SNR Unranked
- Kansas
- SNR Unranked
- Louisiana
- SNR Unranked
- NJ
- S2 Imperiled
- Michigan
- SNR Unranked
- New York
- SNR Unranked
- Wisconsin
- SU Unrankable
- Tennessee
- SNA Not Applicable
- Arizona
- SNR Unranked
- Ohio
- SNR Unranked
- South Dakota
- SNR Unranked
- California
- SNA Not Applicable
- New Mexico
- SNR Unranked
- Missouri
- S1 Critically Imperiled
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
Lucilla singleyana (Pilsbry, 1889). Cave Biology Data Portal, account SP-1813. https://cavebiology.org/species/lucilla-singleyana/ (accessed 7 September 2026).
Data sources and funding are listed in the Acknowledgments.
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