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Share your observations of plants or non-game animals with the Natural Heritage Inventory.

Rare animals
Find rare and non-game animals.
Rare plants
Learn about plants on the Natural Heritage Working List.
Rare lichens
Discover Wisconsin's lichens.
Natural communities
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Other features
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Contact information
For information on Wisconsin's rare animals, contact:
Rich Staffen
Conservation Biologist
608-266-4340

Eastern Flat-whorl (Planogyra asteriscus)


Overview

Overview

Eastern Flat-whorl, (Planogyra asteriscus), a terrestrial snail listed as Special Concern, has a shell light to dark brown in color, and ranges from 1.7-2mm in width. It prefers wet places, and has been found in swamps and around marsh edges.

State status

Status and Natural Heritage Inventory documented occurrences in Wisconsin

The table below provides information about the protected status - both state and federal - and the rank (S and G Ranks) for Eastern Flat-whorl (Planogyra asteriscus). See the Working List Key for more information about abbreviations. Counties shaded blue have documented occurrences for this species in the Wisconsin Natural Heritage Inventory database. The map is provided as a general reference of where occurrences of this species meet NHI data standards and is not meant as a comprehensive map of all observations.

Note: Species recently added to the NHI Working List may temporarily have blank occurrence maps.


Documented locations of Planogyra asteriscus in the Natural Heritage Inventory Database as of July 2015.
Summary Information
State StatusSC/N
Federal Status in Wisconsinnone
State RankS1
Global RankG4
Tracked by NHIY
WWAP SGCN

Species guidance


A guidance document is not available at this time. Use the information from the other tabs and contact local biologists, as needed, to develop management and avoidance strategies.

Photos/Video

Photos


Eastern Flat-whorl

Chicago Field Museum Specimen. Marks are mm.

Photo by Terrell Hyde and W.A. Smith, WDNR.


Last revised: Tuesday, November 28, 2017