IUCN threat status:

Endangered (EN)

Distribution

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Range Description

This species is found in the streams and headwaters of the Yalobusha River in Calhoun, Chickasaw and Webster counties, Mississippi, USA (Fitzpatrick and Busack 1989, USFS 2009). This species represents the only known member of this genus in the Mississippi River drainage (S. Adams, pers. comm. 2009). There have been recent collections of this species from the Topashaw Creek drainage (S. Adams pers. comm. 2009). These sites have been recently sampled, confirming this species persistence (S. Adams, pers. comm. 2009). The species is no longer present in the type locality and was recently found to be absent from several previously known localities (NatureServe 2009).

The extent of occurrence of this species has been estimated at just over 1,700 km2. It has been described as severely fragmented within its range due to the barrier effects of unsuitable habitat (S. Adams, pers. comm. 2010).

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Source: IUCN

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