IUCN threat status:

Least Concern (LC)

Distribution

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Range Description

This species inhabits the tributaries of the Cheat, Greenbrier, and Tygart rivers in West Virginia, the Allegheny and Monongahela river basins in Pennsylvania and New York, and is widespread in eastern Ohio, USA (Fetzner 2008, Thoma and Jezerinac 1999). In recent years this species has extended its range to the basin of Lake Erie and can now be found in the tributaries of the Grand River, Ohio and Gennessee River, New York (Thoma and Jezerinac 2000). It extends into a small portion of Virginia in Wolf Creek in Tazewell and Bland Counties (R. Thoma, pers. comm. 2009). It has recently been documented in the Monongahela River in Maryland (R. Thoma and T. Jones, pers. comm. 2009). The extent of occurrence of this species has been estimated to exceed 116,000 km.

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Source: IUCN

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