A hidden heelsplitter: Distribution of an undescribed endemic freshwater mussel in the Barrens Plateau

Southeastern Naturalist
By: , and 

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Abstract

Malacologists generally acknowledge that the Alasminota holstonia (Tennessee Heelsplitter) populations in the Caney Fork, Elk, and Duck river drainages in the Barrens Plateau region of middle Tennessee likely represent a closely related, but distinct, species, collectively referred to as Alasminota sp. (Barrens Heelsplitter). Recent surveys indicate that the species persists in at least 5 streams: Collins River, Pocahontas Branch, Witty Creek, and Pepper Hollow Branch in the Caney Fork River drainage and Little Duck River in the Duck River drainage, with evidence of recruitment in 2 of these streams. These findings suggest a restricted distribution and highlight the need for taxonomic assessment through genetic analysis. If elevated to species status, the Barrens Heelsplitter would represent a narrow endemic that may require conservation attention, underscoring the ecological significance of Tennessee's Barrens Plateau Region.

Suggested Citation

Womble, K.I., Rosenberger, A.E., Henderson, A.R., 2025, A hidden heelsplitter: Distribution of an undescribed endemic freshwater mussel in the Barrens Plateau: Southeastern Naturalist, v. 24, no. sp13, p. 17-26, https://doi.org/10.1656/058.024.0sp1302.

Publication type Article
Publication Subtype Journal Article
Title A hidden heelsplitter: Distribution of an undescribed endemic freshwater mussel in the Barrens Plateau
Series title Southeastern Naturalist
DOI 10.1656/058.024.0sp1302
Volume 24
Issue sp13
Publication Date November 11, 2025
Year Published 2025
Language English
Publisher BioOne
Contributing office(s) Coop Res Unit Atlanta
Description 10 p.
First page 17
Last page 26
Country United States
State Tennessee
Other Geospatial Barrens Plateau region
Additional publication details