Twin Cities Ecological Services Field Office

Midwest Region


Twin Cities Field Office

4101 American Boulevard East
Bloomington, MN 55425
Phone: 952-252-0092
Fax: 952-646-2873
TTY: 1-800-877-8339 (Federal Relay)




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Minnesota Endangered Species Youth Art Contest

Higgins eye pearlymussel (Lampsilis higginsii)


Higgins eye pearlymussel

Photo by U. S. Fish and Wildlife Service

The Higgins eye is an endangered freshwater mussel found in the upper Mississippi River, St. Croix River between Minnesota and Wisconsin, Wisconsin River, and the lower Rock River between Illinois and Iowa. The species' range was about 50% of its historic distribution when it was first listed, but has declined further because zebra mussels have invaded a number of productive mussel beds. Fortunately, efforts to propagate and restock river reaches that are zebra mussel-free have been successful.


Higgins Eye in Minnesota


Species Overview linked to the National USFWS Endangered Species website

Fact Sheet: Higgins eye pearlymussel


Higgins Eye Pearlymussel Home


Species Profile (links to National U.S. Fish & Wildlife Service web pages)




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Last updated: February 11, 2016