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Taxonomic Status of the Percid Fish Etheostoma nigrum susanae

Wayne C. Starnes and Lynn B. Starnes
Copeia
Vol. 1979, No. 3 (Aug. 1, 1979), pp. 426-430
DOI: 10.2307/1443217
Stable URL: http://www.jstor.org/stable/1443217
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Taxonomic Status of the Percid Fish Etheostoma nigrum susanae
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Abstract

The taxonomic status of Etheostoma nigrum susanae, a form endemic to the upper Cumberland River drainage in Kentucky and Tennessee, has been in question in recent years, but lack of specimens has prevented attempts at clarification. Recently acquired material has facilitated an investigation; the results indicate consistent differences between E. n. susanae (Jordan and Swain) and E. n. nigrum Rafinesque, as well as evidence of intergradation, which suggest that susanae should continue to be accorded subspecific status. This subspecies of johnny darter is rare and apparently threatened.

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