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

Shaggy ghostsnail
Dasyscias franzi F. G. Thompson & Hershler, 1991

Taxonomy

Kingdom Animalia
Phylum Mollusca
Class Gastropoda
Order Littorinimorpha
Family Hydrobiidae
Genus Dasyscias
Species Dasyscias franzi F. G. Thompson & Hershler, 1991

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic
Maximum body length
~2 mm

Distribution

Type locality

Blue Spring Cave, Washington Co., FL

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

Specimens

Type material

Holotype
93964-Mollusca · Florida Museum of Natural History
Paratype ×6
Florida Museum of Natural History
Paratype
USNM 860468 · National Museum of Natural History, Smithsonian Institution

Collections holding material

InstitutionLots
Florida Museum of Natural History 7
National Museum of Natural History, Smithsonian Institution 1

8 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 8 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.

Conservation and management

NatureServe

G1 Critically Imperiled

G1▲G2G3G4G5

Global rank last reviewed 28 February 2014.

Subnational ranks

Florida
S1 Critically Imperiled

State and federal status

Not listed under the U.S. Endangered Species Act

Threats

  • Recreational/Commerical Cave Activities
  • Pollution -Sewage or Urban Wastewater
  • Pollution - Commercial/Industrial
  • Pollution - Agricultural & Forestry

Other resources

Catalogue of Life
349YW
GBIF
2300216
ITIS
567477
iNaturalist
218162

How to cite this account

Dasyscias franzi F. G. Thompson & Hershler, 1991. Cave Biology Data Portal, account SP-1396. https://cavebiology.org/species/dasyscias-franzi/ (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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