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

Raccoon coil
Helicodiscus barri Hubricht, 1962

Taxonomy

Kingdom Animalia
Phylum Mollusca
Class Gastropoda
Order Stylommatophora
Family Helicodiscidae
Genus Helicodiscus
Species Helicodiscus barri Hubricht, 1962

Synonyms

Helicodiscus barri Hubricht, 1962

Description

Diagnostic characters

Ecological class
Troglobiont
Realm
Terrestrial
Troglomorphy
Troglomorphic

Distribution

Type locality

Columbia Caverns, Dickson Co. TN

Range

Known from three states across two karst regions.

Continent

North America

Country

United States

States and provinces

Alabama, Georgia, Tennessee

Counties

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

Karst regions

Appalachians, Interior Low Plateau

Genetics

Molecular resources

MarkerMoleculeSequences LengthExemplar
28S nuclear 57 233-1280 bp MK590410.1
H3 nuclear 25 275-329 bp MK675034.1
COI mitochondrial 24 466-667 bp MK675009.1

106 sequences, retrieved 23 August 2026. Counts change as sequences are deposited. Search GenBank.

Download all 106 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.

Specimens

Type material

Holotype
207799 · University of Michigan Museum of Zoology
Paratype
MO263017 · Academy of Natural Sciences of Drexel University
Paratype
239122 · Field Museum of Natural History
Paratype
207800 · University of Michigan Museum of Zoology

Collections holding material

InstitutionLots
Field Museum of Natural History 9
University of Michigan Museum of Zoology 2
Academy of Natural Sciences of Drexel University 1
Florida Museum of Natural History 1

13 cataloged lots in 4 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 13 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.

Conservation and management

NatureServe

G3G4 Vulnerable to Apparently Secure

G1G2G3▲G4▲G5

Global rank last reviewed 8 December 2004.

Subnational ranks

Alabama
SNR Unranked
Georgia
SNR Unranked
Tennessee
S3 Vulnerable

State and federal status

Not listed under the U.S. Endangered Species Act

Other resources

Catalogue of Life
7RJ5N
GBIF
2297301
ITIS
77356
iNaturalist
221012
NCBI Taxonomy
2528050

How to cite this account

Helicodiscus barri Hubricht, 1962. Cave Biology Data Portal, account SP-1407. https://cavebiology.org/species/helicodiscus-barri/ (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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