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

Florida Cave Amphipod
Crangonyx grandimanus Bousfield, 1963

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Crustacea
Class Malacostraca
Order Amphipoda
Family Crangonyctidae
Genus Crangonyx
Species Crangonyx grandimanus Bousfield, 1963

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic

Distribution

Range

Known from Florida in the Florida Lime Sinks karst region.

Continent

North America

Country

United States

States and provinces

Florida

Counties

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

Karst regions

Florida Lime Sinks

Genetics

Molecular resources

MarkerMoleculeSequences LengthExemplar
18S nuclear 6 355-2225 bp PQ522381.1
28S nuclear 3 839-845 bp MG805664.1
16S mitochondrial 2 359-360 bp MG805660.1
COI mitochondrial 2 455-598 bp PQ510727.1

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

Download all 13 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.

Specimens

Type material

Holotype
CMNC 1982-0308 · Canadian Museum of Nature
Paratype
CMNC 1992-0101 · Canadian Museum of Nature
Topotype ×2
Yale Peabody Museum

Collections holding material

InstitutionLots
Yale Peabody Museum 44
National Museum of Natural History, Smithsonian Institution 19
Canadian Museum of Nature 3
American Museum of Natural History 1

67 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 67 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.

Conservation and management

IUCN Red List

VU Vulnerable D2

EXEWCRENVU▲NTLC

Assessed in 1996.

NatureServe

G2G3 Imperiled to Vulnerable

G1G2▲G3▲G4G5

Global rank last reviewed 3 June 2026.

Subnational ranks

Florida
S2S3 Imperiled to Vulnerable

State and federal status

Not listed under the U.S. Endangered Species Act

Other resources

Catalogue of Life
Z4TW
GBIF
2217967
ITIS
95092
iNaturalist
98599
NCBI Taxonomy
2072710

How to cite this account

Crangonyx grandimanus Bousfield, 1963. Cave Biology Data Portal, account SP-0960. https://cavebiology.org/species/crangonyx-grandimanus/ (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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