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

Rare animals
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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

Washboard (Megalonaias nervosa)

Need a main photo for this animal


Overview

Overview

Washboard (Megalonaias nervosa), a State Special Concern mussel. This species is found in the western part of the state in large rivers with moderate current. Although it has been found in various substrate types, it seems to be most abundant in stable mud. A number of common fish species have been recorded as its host (eel, catfish, centrarchids, bowfin and bass).

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 Washboard (Megalonaias nervosa). 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 Megalonaias nervosa in the Natural Heritage Inventory Database as of July 2015.
Summary Information
State StatusSC/P
Federal Status in Wisconsinnone
State RankS3
Global RankG5
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


Washboard

Photo by Lisie Kitchell, WDNR.


Last revised: Thursday, May 04, 2017