# Endangered and Threatened Wildlife and Plants; Determination of Endangered Status for the Sheepnose and Spectaclecase Mussels Throughout Their Range
> **US Fish and Wildlife Service** · Final rule. · Published 2012-03-13 · Effective 2012-04-12 · 77 FR 14914
## Document
- **Document number:** 2012-5603
- **Category:** endangered-species
- **Sub-agency:** US Fish and Wildlife Service
- **Federal Register citation:** 77 FR 14914
- **CFR reference:** 50 CFR 17
- **Publication date:** 2012-03-13
- **Effective date:** 2012-04-12
- **Interior docket:** Docket No. FWS-R3-ES-2010-0050
## Abstract

We, the U.S. Fish and Wildlife Service (Service), determine endangered status under the Endangered Species Act of 1973 (Act), as amended, for the spectaclecase (Cumberlandia monodonta) and sheepnose (Plethobasus cyphyus), two freshwater mussels. This final rule implements the Federal protections provided by the Act for these species throughout their ranges, including sheepnose in Alabama, Illinois, Indiana, Iowa, Kentucky, Minnesota, Mississippi, Missouri, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, and Wisconsin, and spectaclecase in Alabama, Arkansas, Illinois, Indiana, Iowa, Kansas, Kentucky, Minnesota, Missouri, Ohio, Tennessee, Virginia, West Virginia, and Wisconsin. We determined that critical habitat for the spectaclecase and sheepnose is prudent, but not determinable at this time.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/03/13/2012-5603/endangered-and-threatened-wildlife-and-plants-determination-of-endangered-status-for-the-sheepnose)
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