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

Illinois Cave Amphipod
Gammarus acherondytes Hubricht & Mackin, 1940

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Crustacea
Class Malacostraca
Order Amphipoda
Family Gammaridae
Genus Gammarus
Species Gammarus acherondytes Hubricht & Mackin, 1940

Synonyms

Gammarus acheronytes Hubricht & Mackin, 1940 [orth. error]

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic

Distribution

Type locality

Illinois Caverns, Monroe Co. IL

Range

Known from Illinois in the Ozarks karst region.

Continent

North America

Country

United States

States and provinces

Illinois

Counties

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

Karst regions

Ozarks

Genetics

Molecular resources

MarkerMoleculeSequences LengthExemplar
COI mitochondrial 80 609-609 bp EU545632.1

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

Download all 80 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.

Specimens

Type material

Syntype ×2
National Museum of Natural History, Smithsonian Institution
Type ×3
Royal Ontario Museum

Collections holding material

InstitutionLots
Illinois Natural History Survey 21
National Museum of Natural History, Smithsonian Institution 11
Royal Ontario Museum 3
Canadian Museum of Nature 1
Naturalis Biodiversity Center 1

37 cataloged lots in 5 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 37 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.

Conservation and management

IUCN Red List

EN Endangered B1ab(ii)+2ab(ii)

EXEWCREN▲VUNTLC

Assessed in 2002.

NatureServe

G2G3 Imperiled to Vulnerable

G1G2▲G3▲G4G5

Global rank last reviewed 18 September 2008.

Subnational ranks

Illinois
S1S2 Critically Imperiled to Imperiled

State and federal status

Endangered under the U.S. Endangered Species Act listed 1998

Federal: Endangered

Other resources

Catalogue of Life
3F882
GBIF
2219854
ITIS
656837
iNaturalist
101213
NCBI Taxonomy
513413
BOLD
BOLD:AAA4560

How to cite this account

Gammarus acherondytes Hubricht & Mackin, 1940. Cave Biology Data Portal, account SP-1113. https://cavebiology.org/species/gammarus-acherondytes/ (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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