# Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for Pearl Darter
> **US Fish and Wildlife Service** · Final rule. · Published 2023-04-06 · Effective 2023-05-08 · 88 FR 20410
## Document
- **Document number:** 2023-07081
- **Category:** endangered-species
- **Sub-agency:** US Fish and Wildlife Service
- **Federal Register citation:** 88 FR 20410
- **CFR reference:** 50 CFR 17
- **Publication date:** 2023-04-06
- **Effective date:** 2023-05-08
- **Interior docket:** Docket No. FWS-R4-ES-2020-0062
## Abstract

We, the U.S. Fish and Wildlife Service (Service), designate critical habitat for the pearl darter (Percina aurora) under the Endangered Species Act of 1973 (Act), as amended. In total, approximately 524 river miles (843 river kilometers) in Clarke, Covington, Forrest, George, Green, Lauderdale, Jackson, Jones, Newton, Perry, Simpson, Stone, and Wayne Counties, Mississippi, fall within the boundaries of the critical habitat designation. The effect of this regulation is to designate critical habitat for the pearl darter under the Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/04/06/2023-07081/endangered-and-threatened-wildlife-and-plants-designation-of-critical-habitat-for-pearl-darter)
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