# Endangered and Threatened Wildlife and Plants; Endangered Species Status for Texas Hornshell
> **US Fish and Wildlife Service** · Final rule. · Published 2018-02-09 · Effective 2018-03-12 · 83 FR 5720
## Document
- **Document number:** 2018-02672
- **Category:** endangered-species
- **Sub-agency:** US Fish and Wildlife Service
- **State:** TX
- **Federal Register citation:** 83 FR 5720
- **CFR reference:** 50 CFR 17
- **Publication date:** 2018-02-09
- **Effective date:** 2018-03-12
- **Interior docket:** Docket No. FWS-R2-ES-2016-0077
## Abstract

We, the U.S. Fish and Wildlife Service (Service), determine endangered species status under the Endangered Species Act of 1973 (Act), as amended, for the Texas hornshell (Popenaias popeii), a freshwater mussel species from New Mexico, Texas, and Mexico. The effect of this regulation will be to add this species to the List of Endangered and Threatened Wildlife.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/02/09/2018-02672/endangered-and-threatened-wildlife-and-plants-endangered-species-status-for-texas-hornshell)
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