Endangered Species
Midwest Region



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Conserving and restoring threatened and endangered species and their ecosystems


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Neosho Mucket (Lampsilis rafinesqueana)


Photo of a Neosho mucket.

Photo by Chris Barnhart


Status: Endangered (listed Sept. 17, 2013)

Critical Habitat Designated (April 30, 2015


Range: Arkansas, Kansas, Missouri and Oklahoma

Lead Region: Region 4

Region 3 Lead Office: Columbia Missouri Field Office


The Neosho Mucket, a freshwater mussel, is an endangered species. It is found in rivers and streams in Arkansas, Kansas, Missouri, and Oklahoma. We estimate the Neosho mucket has been lost from about 62 percent of its historical range with only 9 of 16 historical populations remaining. This mussel is declining throughout its range with only one of the remaining nine populations considered a large, viable population.


Sept. 19, 2013: Recovering Aquatic Life in Missouri - - Neosho mucket is a featured species in this article.


Final Critical Habitat Designated

News Release: Fish and Wildlife Service Designates Critical Habitat for Two Freshwater Mussels in 12 States (April 29, 2015)


Final Rule (PDF)


Critical Habitat Unit Maps for Missouri


Critical Habitat Portal - view a map or download shapefiles


Fact Sheet


Listing and Critical Habitat Information


Archives - previous federal actions


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Midwest Endangered Species Home


Last updated: October 10, 2018