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Subterranean biodiversity of North America and around the globe

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

Flocculent Tailed Millipede
Ptyoiulus impressus (Say, 1821)

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Myriapoda
Class Diplopoda
Order Julida
Family Parajulidae
Genus Ptyoiulus
Species Ptyoiulus impressus (Say, 1821)

Description

Diagnostic characters

Ecological class
Trogloxene
Realm
Terrestrial

Distribution

Range

Counties

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

Conservation and management

NatureServe

G5 Secure

G1G2G3G4G5▲

National ranks

Canada
NNR
United States
NNR

Subnational ranks

Ontario
SU Unrankable
Virginia
S5 Secure

State and federal status

Not listed under the U.S. Endangered Species Act

References

  • Loomis, H.F. 1939. The millipeds collected in Appalachian caves by Mr. Kenneth Dearolf. Bulletin of the Museum of Comparative Zoology 86: 165–193. https://www.biodiversitylibrary.org/page/2775893.

How to cite this account

Ptyoiulus impressus (Say, 1821). Cave Biology Data Portal, account SP-2887. https://cavebiology.org/species/ptyoiulus-impressus/ (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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