IUCN threat status:

Least Concern (LC)


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Range Description

This species is endemic to North America. It is distributed from the coastal plain portion of the Gulf of Mexico drainages from the Escambia River in Florida west to Texas and north into the Mississippi River drainage (Mulvey et al. 1997). It is also known from the St. Lawrence River drainage, but it is absent from Lake Superior and its drainages (Burch 1975). Butler (1989) lists the distribution as throughout the Interior Basin and from the San Antonio River, Texas, east to the Choctawhatchee River, but it is not known from the Yellow River. In Michigan the species is found mainly in rivers in the lower peninsula from the Saginaw and Grand River drainages to the south. However, there are some records from the Sturgeon River in the upper peninsula (Burch 1975). In Canada, the species range is restricted to southern Ontario, southern Manitoba and southeastern Saskatchewan. It is widely distributed and often abundant in Canada. It is restricted to the Lake Erie drainage in Ontario (Metcalfe-Smith and Cadmore-Vokey 2004). Its northern range includes the Red River of the North, Winnipeg River and Nelson River (Burch 1975). It extends into the Niagara River drainage in western New York State (Strayer and Jirka 1997).


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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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