The NSS Bulletin - ISSN 1090-6924
Volume 38 Number 2: 39-40 - April 1976

A publication of the National Speleological Society

Typhlichthys subterraneus Girard (Pisces: Amblyopsidae) in the Jackson Plain of Tennessee
David L. Bechler


Three populations of Typhlichthys subterraneus are known to exist west of the Tennessee River, in Decatur County. All three localiteis lies in Silurian limestone bordered on the west by Cretaceous sediments marking the eastern edge of the Mississippi Embayment. Futher west distribution of Typhlichthys is considered improbable, becasue of the lack of massive limestones in the Cretaceous formations. An analysis of variation shows the Jackson Plain specimens not to differ significantly from other known populations.

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