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

Islandiana unicornis Ivie, 1965

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Chelicerata
Class Arachnida
Order Araneae
Family Linyphiidae
Genus Islandiana
Species Islandiana unicornis Ivie, 1965

Description

Diagnostic characters

Ecological class
Troglobiont
Realm
Terrestrial
Troglomorphy
Troglomorphic

Distribution

Range

Known from two states in the Other karst region.

Continent

North America

Country

United States

States and provinces

Oklahoma, Texas

Counties

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

Karst regions

Other

Specimens

Collections holding material

InstitutionLots
Field Museum of Natural History 2
University of Texas, Biodiversity Center, Entomology Collection 2

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

Conservation and management

NatureServe

G2G3 Imperiled to Vulnerable

G1G2▲G3▲G4G5

Global rank last reviewed 21 August 2002.

Subnational ranks

Oklahoma
S1 Critically Imperiled
Texas
S2 Imperiled

State and federal status

Not listed under the U.S. Endangered Species Act

Other resources

Catalogue of Life
6N9KM
GBIF
2138519
ITIS
858708
iNaturalist
222318

How to cite this account

Islandiana unicornis Ivie, 1965. Cave Biology Data Portal, account SP-0128. https://cavebiology.org/species/islandiana-unicornis/ (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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