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

Northern Cavefish Copepod
Cauloxenus stygius Cope, 1872

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Crustacea
Class Maxillopoda
Order Siphonostomatoida
Family Lernaeopodidae
Genus Cauloxenus
Species Cauloxenus stygius Cope, 1872

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic

Distribution

Type locality

Sibert's Well Cave, Crawford Co. IN

Range

Known from one county across two states in the Interior Low Plateau karst region.

Continent

North America

Country

United States

States and provinces

Indiana, Kentucky

Counties

Kentucky
Edmonson

Karst regions

Interior Low Plateau

Conservation and management

NatureServe

G1G2 Critically Imperiled to Imperiled

G1▲G2▲G3G4G5

Global rank last reviewed 20 January 2023.

Subnational ranks

Indiana
S1 Critically Imperiled

Ranks looked up 23 August 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.

Threats

  • Recreational/Commerical Cave Activities
  • Pollution -Sewage or Urban Wastewater
  • Pollution - Commercial/Industrial
  • Pollution - Agricultural & Forestry

Other resources

Catalogue of Life
5XF96
GBIF
2116319
ITIS
655956
iNaturalist
216338

References

  • Bailey, V. 1933. Cave Life of Kentucky. US Department of Agriculture, Bureau of Biological Survey, Washington, DC, USA. 256 pp.
  • Giovannoli, L. 1933. Invertebrate life of Mammoth and other neighboring caves. In: Bailey, V. (ed), Cave Life of Kentucky, pp. 600–623.

This account was last revised 28 August 2026. Conservation ranks were looked up 23 August 2026.

How to cite this account

Cauloxenus stygius Cope, 1872. Cave Biology Data Portal, account SP-1333. https://cavebiology.org/species/cauloxenus-stygius/ (accessed 18 October 2026).
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Data sources and funding are listed in the Acknowledgments.

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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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