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Robust redhorse
The robust redhorse, ''Moxostoma robustum'', is a redhorse-type fish that lives in the freshwater streams of the eastern United States. It was previously called the smallfin redhorse.
== Taxonomy ==
Using a specimen from the Yadkin River of North Carolina, naturalist Edward Drinker Cope first described the robust redhorse as ''Ptychostomus robustus'' in 1870.〔(【引用サイトリンク】title=www.robustredhorse.com )〕 The original specimen was lost or destroyed, and by the late 19th century, all mention of the robust redhorse had ceased. It was thought to be extinct 〔(【引用サイトリンク】title=coopunit.forestry.uga.edu )〕 until several unidentified fish specimens were collected from the Savannah River and Pee Dee River in 1980 and 1985.〔 In August 1991, biologists with the Georgia Department of Natural Resources, officially rediscovered the species when five specimens of the fish were collected in the Oconee River, and identified as Robust Redhorse.〔
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