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Cave Biology Data Portal
Subterranean biodiversity of North America and around the globe
AnimaliaMolluscaGastropodaStylommatophoraDiscidaeDiscus

Domed Disc
Discus patulus (Deshayes, 1832)

Taxonomy

Kingdom Animalia
Phylum Mollusca
Class Gastropoda
Order Stylommatophora
Family Discidae
Genus Discus
Species Discus patulus (Deshayes, 1832)

Description

Diagnostic characters

Ecological class
Trogloxene
Realm
Terrestrial

Distribution

Range

Known from 11 counties across three states.

Continent

North America

Country

United States

States and provinces

Alabama, Kentucky, Tennessee

Counties

Alabama
Blount, Jackson, Lauderdale, Madison
Kentucky
Pulaski
Tennessee
DeKalb, Fentress, Franklin, Grundy, Marion, Warren

Conservation and management

NatureServe

G5 Secure

G1G2G3G4G5▲

National ranks

United States
N5 Secure
Canada
N2 Imperiled

Subnational ranks

Virginia
S4 Apparently Secure
Louisiana
SNR Unranked
Georgia
SNR Unranked
North Carolina
S3 Vulnerable
Illinois
SNR Unranked
West Virginia
S5 Secure
South Carolina
SNR Unranked
Wisconsin
SU Unrankable
Iowa
SNR Unranked
Tennessee
S5 Secure
Michigan
S1 Critically Imperiled
Kentucky
S4 Apparently Secure
Mississippi
SNR Unranked
Maryland
SNR Unranked
Alabama
SNR Unranked
Pennsylvania
S3 Vulnerable
Missouri
SNR Unranked
Ohio
SNR Unranked
Indiana
SNR Unranked
New York
SNR Unranked
Florida
SNR Unranked
Ontario
S2 Imperiled

State and federal status

Not listed under the U.S. Endangered Species Act

References

  • Hubricht, L. 1964. Land snails from the caves of Kentucky, Tennessee and Alabama. National Speleological Society Bulletin 26: 33–36.
  • Lewis, J.J. 2004. Interstate 66 karst faunal study. Environmental Impact Statement. 17 pp.
  • 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.
  • Peck, S.B. 1989. The cave fauna of Alabama. Part I. The terrestrial invertebrates (excluding insects). National Speleological Society Bulletin 51: 11–33.

How to cite this account

Discus patulus (Deshayes, 1832). Cave Biology Data Portal, account SP-2391. https://cavebiology.org/species/discus-patulus/ (accessed 6 September 2026).

Data sources and funding are listed in the Acknowledgments.

Spotted something wrong on this page? Report a correction. Accounts are compiled from many sources and corrections from people who know the group are the most useful email we get.

Cave Biology Data Portal

Species accounts, distributions, and conservation status for the subterranean fauna of North America and around the globe, with resources for the cave and karst research community.

Text and data CC BY 4.0. Images all rights reserved unless stated.

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