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

Mimic cavesnail
Phreatodrobia imitata Hershler & Longley, 1986

Taxonomy

Kingdom Animalia
Phylum Mollusca
Class Gastropoda
Order Littorinimorpha
Family Cochliopidae
Genus Phreatodrobia
Species Phreatodrobia imitata Hershler & Longley, 1986

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic

Distribution

Type locality

Verstraeten Well, Bexar Co., TX

Range

Known from Texas in the Edwards Plateau and Balcones karst region.

Continent

North America

Country

United States

States and provinces

Texas

Counties

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

Karst regions

Edwards Plateau and Balcones

Genetics

Molecular resources

MarkerMoleculeSequences LengthExemplar
28S nuclear 1 645-645 bp OR391743.1
COI mitochondrial 1 618-618 bp OR372130.1

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

Download all 2 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.

Specimens

Type material

Holotype
MO359088 · Academy of Natural Sciences of Drexel University
Paratype
MO508797 · Academy of Natural Sciences of Drexel University

Collections holding material

InstitutionLots
Edwards Aquifer Research and Data Center, Texas State University 39
Academy of Natural Sciences of Drexel University 2
National Museum of Natural History, Smithsonian Institution 1

42 cataloged lots in 3 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 42 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

G1 Critically Imperiled

G1▲G2G3G4G5

Global rank last reviewed 20 May 2026.

Subnational ranks

Texas
S1 Critically Imperiled

State and federal status

Not listed under the U.S. Endangered Species Act

Other resources

Catalogue of Life
77CFX
GBIF
2299962
ITIS
70693
iNaturalist
109342
NCBI Taxonomy
3065226

How to cite this account

Phreatodrobia imitata Hershler & Longley, 1986. Cave Biology Data Portal, account SP-1382. https://cavebiology.org/species/phreatodrobia-imitata/ (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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