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

Yeatman's Groundwater Copepod
Diacyclops yeatmani Reid, 1988

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Crustacea
Class Maxillopoda
Order Cyclopoida
Family Cyclopidae
Genus Diacyclops
Species Diacyclops yeatmani Reid, 1988

Synonyms

Cyclops clandestinus Yeatman, 1964
Diacyclops clandestinus (Yeatman, 1964)

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic

Distribution

Type locality

Bigmouth Cave, Grundy Co. TN

Range

Known from five states across three karst regions.

Continent

North America

Country

United States

States and provinces

Illinois, Indiana, Missouri, Oklahoma, Tennessee

Counties

County-level records have not been compiled for this taxon. Distribution is recorded at state and karst-region level.

Karst regions

Interior Low Plateau, Other, Ozarks

Specimens

Collections holding material

InstitutionLots
Royal Belgian Institute of Natural Sciences 4
National Museum of Natural History, Smithsonian Institution 1

5 cataloged lots in 2 collections. Compiled from GBIF and not an exhaustive census: many collections are not yet digitised, and holdings are added continually. Search GBIF for specimen records.

Download all 5 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.

Conservation and management

NatureServe

G2G3 Imperiled to Vulnerable

G1G2▲G3▲G4G5

Global rank last reviewed 21 February 2008.

Subnational ranks

Illinois
SNR Unranked
Indiana
S1 Critically Imperiled
Missouri
S1S3 Critically Imperiled to Vulnerable
Tennessee
S1 Critically Imperiled

State and federal status

Not listed under the U.S. Endangered Species Act

Other resources

Catalogue of Life
357JN
GBIF
2116992
ITIS
88792
iNaturalist
218311

How to cite this account

Diacyclops yeatmani Reid, 1988. Cave Biology Data Portal, account SP-1327. https://cavebiology.org/species/diacyclops-yeatmani/ (accessed 3 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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