Tight Coil
Helicodiscus notius Hubricht, 1962

Taxonomy

Synonyms

Description

Diagnostic characters

Ecological class

Troglophile

Realm

Terrestrial

Distribution

Range

Known from 20 counties across six states.

Continent

North America

Country

United States

States and provinces

Alabama, Georgia, Illinois, Kentucky, Missouri, Tennessee

Counties

Alabama

Blount, DeKalb

Georgia

Grady

Illinois

Monroe

Kentucky

Barren, Edmonson, Hart

Missouri

Camden, Dade, Lawrence, Miller, Pettis, St. Louis, Washington

Tennessee

DeKalb, Franklin, Grundy, Roane, Sullivan, Warren

Conservation and management

NatureServe

G5 Secure

Global rank last reviewed 8 October 2002.

Subnational ranks

Alabama

SNR Unranked

Arkansas

SNR Unranked

Florida

SNR Unranked

Georgia

SNR Unranked

Illinois

SNR Unranked

Indiana

SNR Unranked

Kansas

SNR Unranked

Kentucky

S3 Vulnerable

Louisiana

SNR Unranked

Maryland

SNR Unranked

Missouri

SNR Unranked

Mississippi

SNR Unranked

North Carolina

S5 Secure

Oklahoma

SNR Unranked

South Carolina

SNR Unranked

Tennessee

S5 Secure

Texas

SU Unrankable

Virginia

S4 Apparently Secure

West Virginia

S5 Secure

State and federal status

Not listed under the U.S. Endangered Species Act

References

• Barr, T.C., Jr. & Kuehne, R.A. 1971. Ecological studies in the Mammoth Cave system of Kentucky. II. The Ecosystem. Annales de Speleologie 26: 47–96. doi:10.5038/1827-806X.3.1.10
• Gladstone, N.S., Carter, E.T., McKinney, M.L. & Niemiller, M.L. 2018. Status and distribution of the cave-obligate land snails in the Appalachians and Interior Low Plateau of the eastern United States. American Malacological Bulletin 36: 62–78.
• Hubricht, L. 1962. New species of Helicodiscus from the eastern United States. The Nautilus 75: 102–107. https://www.biodiversitylibrary.org/page/8283022.
• Hubricht, L. 1964. Land snails from the caves of Kentucky, Tennessee and Alabama. National Speleological Society Bulletin 26: 33–36.
• Hubricht, L. 1973. The land snails of Tennessee. Sterkiana 49: 11–17.
• 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.
• Niemiller, M.L. & Zigler, K.S. 2013. Patterns of cave biodiversity and endemism in the Appalachians and Interior Plateau of Tennessee, USA. PLOS One 8: e64177. doi:10.1371/journal.pone.0064177
• Niemiller, M.L., Zigler, K.S., Hinkle, A., Stephen, C.D.R., Cramphorn, B., Higgs, J., Mann, N., Miller, B.T., Niemiller, K.D.K., Smallwood, K. & Hardy, J. 2023. The Crystal-Wonder Cave System: a new hotspot of subterranean biodiversity in the southern Cumberland Plateau of south-central Tennessee, USA. Diversity 15: 801. doi:10.3390/d15070801
• Peck, S.B. 1989. The cave fauna of Alabama. Part I. The terrestrial invertebrates (excluding insects). National Speleological Society Bulletin 51: 11–33.
• Zigler, K.S., Niemiller, M.L., Stephen, C.D.R., Ayala, B.N., Milne, M.A., Gladstone, N.S., Engel, A.S., Jensen, J.B., Camp, C.D., Ozier, J.C. & Cressler, A. 2020. Biodiversity from caves and other subterranean habitats of Georgia, USA. Journal of Cave and Karst Studies 82: 125–167. doi:10.4311/2019LSC0125

How to cite this account

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.