Iowa Pleistocene Snail
Discus macclintocki (F. C. Baker, 1928)

Taxonomy

Kingdom	Animalia
Phylum	Mollusca
Class	Gastropoda
Order	Stylommatophora
Family	Discidae
Genus	Discus
Species	Discus macclintocki (F. C. Baker, 1928)

Description

Diagnostic characters

Ecological class: Trogloxene
Realm: Terrestrial

Distribution

Range

Known from one county in Iowa.

Continent

North America

Country

United States

States and provinces

Iowa

Counties

Iowa: Clayton

Conservation and management

IUCN Red List

LC Least Concern

Assessed in 2017.

NatureServe

G1 Critically Imperiled

National ranks

United States: N1 Critically Imperiled

Subnational ranks

Illinois: S1 Critically Imperiled
Missouri: SH Possibly Extirpated
Iowa: S1 Critically Imperiled

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

Peck, S.B. & Christiansen, K. 1990. Evolution and zoogeography of the invertebrate cave faunas of the Driftless Area of the upper Mississippi River Valley of Iowa, Minnesota, Wisconsin, and Illinois, U.S.A. Canadian Journal of Zoology 68: 73–88. doi:10.1139/z90-012

This account was last revised 6 September 2026. Conservation ranks were looked up 2 July 2026.

How to cite this account

Discus macclintocki (F. C. Baker, 1928). Cave Biology Data Portal, account SP-2389. https://cavebiology.org/species/discus-macclintocki/ (accessed 22 October 2026).

Data sources and funding are listed in the Acknowledgments.

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