Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Wendell R. Haag; Melvin L. Warren; Keith Wright; Larry Shaffer
    Date: 2002
    Source: Southeastern Naturalist 1(2):169-178 (2002)
    Publication Series: Scientific Journal (JRNL)
    PDF: Download Publication  (267.0 KB)


    We document the occurrence of the rayed creekshell (Anodontoides radiatus Conrad), a freshwater mussel (Unionidae), at eight sites in the upper Yazoo River drainage (lower Mississippi River Basin) in northern Mississippi. Previously, A. radiatus was thought to be restricted to Gulf Coast drainages as far west only as the Tickfaw River system (Lake Pontchartrain Basin), Louisiana. The eight populations reported herein represent the only known occurrences of this species in the Mississippi River Basin. This distributional pattern, along with distributions of other aquatic organisms, suggests that headwater stream capture events occurred historically between lower Mississippi River Basin tributaries and the upper Tombigbee River drainage (Mobile Basin). Because A. Radiatus is a rare species, considered imperiled throughout its range, the discovery of eight additional populations and the extension of its known range are of significance to its conservation.

    Publication Notes

    • You may send email to to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Haag, Wendell R.; Warren, Melvin L., Jr.; Wright, Keith; Shaffer, Larry. 2002. Occurrence of the Rayed Creekshell, Anodontoides Radzatus, in the Mississippi River Basin: Implications For Conservation and Biogeography. Southeastern Naturalist 1(2):169-178 (2002)

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page