IUCN threat status:

Least Concern (LC)


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Range Description

This species is found across southeastern Missouri and northeastern Arkansas (Pflieger 1996). However, this species has disappeared from parts of its former range, particularly in the Spring River drainage. This is thought to be due to displacement by the invasive crayfish Orconectes neglectus (Magoulick and DiStefano 2007). In Missouri, it occurs commonly in all principal drainages on the southern slope of the Ozark Uplands, from the St. Francis River west to Eleven Point River and adjacent Spring River and has been collected in the James Rvier, Beaver Creek, and Little North Fork of the White River system, but is rare there (Pflieger 1996).

Reports for this species in the Mississippi are in error (T. Mann, MS NHP, pers. comm. January 2008). Despite this the extent of occurrence (EOO) of this species has been estimated to exceed 52,000 km2.


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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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