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

Appalachian Valley crangonyctid
Crangonyx antennatus Packard, 1881

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Crustacea
Class Malacostraca
Order Amphipoda
Family Crangonyctidae
Genus Crangonyx
Species Crangonyx antennatus Packard, 1881

Synonyms

Niphargus antennatus (Packard, 1881)
Eucrangonyx antennatus (Packard, 1881)
Crangonyx antennuatus Packard, 1881

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic

Distribution

Type locality

Nickajack Cave, Marion Co. TN

Range

Known from four states across two karst regions.

Continent

North America

Country

United States

States and provinces

Alabama, Georgia, Tennessee, Virginia

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
COI mitochondrial 1 535-535 bp KY748275.1

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

Download all 1 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.

Specimens

Collections holding material

InstitutionLots
National Museum of Natural History, Smithsonian Institution 220
Naturalis Biodiversity Center 2

222 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 222 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.

Conservation and management

NatureServe

G5 Secure

G1G2G3G4G5▲

Global rank last reviewed 17 March 2008.

Subnational ranks

Alabama
S3S5 Vulnerable to Secure
Georgia
SNR Unranked
Tennessee
S4 Apparently Secure
Virginia
S3 Vulnerable

State and federal status

Not listed under the U.S. Endangered Species Act

Other resources

Catalogue of Life
Z4TB
GBIF
2217984
ITIS
95084
iNaturalist
217693
NCBI Taxonomy
2027533

How to cite this account

Crangonyx antennatus Packard, 1881. Cave Biology Data Portal, account SP-0955. https://cavebiology.org/species/crangonyx-antennatus/ (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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