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

Yellow Globelet
Mesodon clausus (Say, 1821)

Taxonomy

Kingdom Animalia
Phylum Mollusca
Class Gastropoda
Order Stylommatophora
Family Polygyridae
Genus Mesodon
Species Mesodon clausus (Say, 1821)

Description

Diagnostic characters

Ecological class
Trogloxene
Realm
Terrestrial

Distribution

Range

Known from one county in Illinois.

Continent

North America

Country

United States

States and provinces

Illinois

Counties

Illinois
Monroe

Conservation and management

NatureServe

G5 Secure

G1G2G3G4G5▲

National ranks

Canada
NU
United States
N5 Secure

Subnational ranks

Ontario
SU Unrankable
Louisiana
SNR Unranked
Michigan
SNR Unranked
Mississippi
SNR Unranked
Alabama
SNR Unranked
Virginia
S3 Vulnerable
Oklahoma
SNR Unranked
Ohio
SNR Unranked
Arkansas
SNR Unranked
Kansas
SNR Unranked
Illinois
SNR Unranked
Iowa
SNR Unranked
Kentucky
S5 Secure
Texas
S4 Apparently Secure
Maryland
SNR Unranked
Missouri
SNR Unranked
West Virginia
SNR Unranked
New York
SNR Unranked
Minnesota
SNR Unranked
Indiana
SNR Unranked
Georgia
SNR Unranked
Wisconsin
S4 Apparently Secure
Tennessee
SNR Unranked
North Carolina
S5 Secure

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.

How to cite this account

Mesodon clausus (Say, 1821). Cave Biology Data Portal, account SP-2637. https://cavebiology.org/species/mesodon-clausus/ (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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