Florida Big Bend Cave Amphipod
Crangonyx parhobbsi Cannizzaro & Sawicki in Cannizzaro, Balding, Lazo-Wasem & Sawicki, 2020
Taxonomy
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Malacostraca |
| Order | Amphipoda |
| Family | Crangonyctidae |
| Genus | Crangonyx |
| Species | Crangonyx parhobbsi Cannizzaro & Sawicki in Cannizzaro, Balding, Lazo-Wasem & Sawicki, 2020 |
Description
Diagnostic characters
- Ecological class
- Stygobiont
- Realm
- Aquatic
- Troglomorphy
- Troglomorphic
Distribution
Range
Known from five counties across two states in the Florida Lime Sinks karst region.
Continent
North America
Country
United States
States and provinces
Florida, Georgia
Counties
- Florida
- Jefferson, Madison, Suwannee, Wakulla
- Georgia
- Brooks
Karst regions
Florida Lime Sinks
Genetics
Molecular resources
| Marker | Molecule | Sequences | Length | Exemplar |
|---|---|---|---|---|
| 28S | nuclear | 58 | 294-598 bp | MT470833.1 |
| 18S | nuclear | 30 | 474-1761 bp | PQ522379.1 |
| COI | mitochondrial | 1 | 596-596 bp | PQ510725.1 |
89 sequences, retrieved 23 August 2026. Counts change as sequences are deposited. Search GenBank.
Download all 89 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.
Specimens
Type material
- Holotype
- 51869-Arthropoda · Florida Museum of Natural History
- Allotype
- 51870-Arthropoda · Florida Museum of Natural History
- Paratype ×11
- Florida Museum of Natural History
Collections holding material
| Institution | Lots |
|---|---|
| Florida Museum of Natural History | 13 |
13 cataloged lots in 1 collection. 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
G1G2 Critically Imperiled to Imperiled
Global rank last reviewed 3 February 2021.
Subnational ranks
- Florida
- S1 Critically Imperiled
Ranks looked up 23 August 2026. Conservation status changes, and a rank here is as current as that date and no more.
State and federal status
Not listed under the U.S. Endangered Species Act.
Other resources
References
- Cannizzaro, A.G., Balding, D., Lazo-Wasem, E.A. & Sawicki, T.R. 2020. A new species rises from beneath Florida: molecular phylogenetic analyses reveal cryptic diversity among the metapopulation of Crangonyx hobbsi Shoemaker, 1941 (Amphipoda: Crangonyctidae). Organisms Diversity & Evolution 20: 387–404. doi:10.1007/s13127-020-00433-4
- Sisco, J.M. & Sawicki, T.R. 2023. Molecular and morphological analyses reveal a new hypogean species of amphipod in the genus Crangonyx Bate, 1859 (Crustacea: Crangonyctidae) within the floridanus species complex, from Suwannee County, Florida. Journal of Natural History 57: 21–24. doi:10.1080/00222933.2023.2247155
This account was last revised 28 August 2026. Conservation ranks were looked up 23 August 2026.
How to cite this account
Data sources and funding are listed in the Acknowledgments.
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