Range extension and review of the conservation status of the freshwater mussel Alasmidonta mccordi Athearn, 1964 (Bivalvia, Unionidae) in the Coosa River drainage of Alabama and Georgia

By

Williams, James D
Wisniewski, Jason M.
Dinkins, Gerald R.

Type

Article

Date of Publication

2022-4-21

Original Publication

Check list : journal of species lists and distribution

Volume

18

Series / Issue

Issue: 2

Pages

391--398

Subjects

Conasauga River , Coosa Elktoe , Etowah River , extinct species

Contributed by

Pensoft Publishers

Language

English

Published by

[São Paulo, Brazil] Luís Felipe Toledo 2005-

Identifiers

DOI: https://doi.org/10.15560/18.2.391

 

Abstract

The Coosa Elktoe, Alasmidonta mccordi Athearn, 1964, was previously known only from the type specimen collected in the Coosa River, St. Clair County, Alabama. Based on the discovery of five previously misidentified specimens in three museum lots, we extend the distribution of A. mccordi into the Etowah and Conasauga Rivers, tributaries of the Coosa River in northwest Georgia. Shell morphology of these museum specimens compare favorably with the only known specimen of the species. The conservation status of A. mccordi is examined in light of its wider historical distribution in the Coosa River drainage. We include recommendations for future research to detect extant populations of this presumed extinct freshwater mussel.