redhorse
noun
red·horse ˈred-ˌhȯrs 
: any of various large suckers (genus Moxostoma) of North American rivers and lakes with the males having red tail fins especially in the breeding season
Example Sentences
Recent Examples on the Web Biologists leading outings with Oxbow River Snorkeling will be sure to point out species like river redhorse, central stonerollers and elusive eastern hellbender salamanders. 
Laura Kiniry, Smithsonian Magazine, 7 June 2021 But the fish Sweitz saw were not the white suckers, greater redhorse, steelhead (rainbow trout) or northern pike that more commonly travel the watery highway this time of year. Paul A. Smith, Milwaukee Journal Sentinel, 11 Apr. 2021 The golden redhorse, found in the Root River among other places, is the sucker highlighted in the DNR's 2021 booklet of fishing regulations. Tony Kennedy, Star Tribune, 1 Apr. 2021 Other fish, including the river redhorse sucker, haven’t been seen in the Pearl in years and likely won’t return. Tristan Baurick, NOLA.com, 23 Jan. 2021
Laura Kiniry, Smithsonian Magazine, 7 June 2021 But the fish Sweitz saw were not the white suckers, greater redhorse, steelhead (rainbow trout) or northern pike that more commonly travel the watery highway this time of year. Paul A. Smith, Milwaukee Journal Sentinel, 11 Apr. 2021 The golden redhorse, found in the Root River among other places, is the sucker highlighted in the DNR's 2021 booklet of fishing regulations. Tony Kennedy, Star Tribune, 1 Apr. 2021 Other fish, including the river redhorse sucker, haven’t been seen in the Pearl in years and likely won’t return. Tristan Baurick, NOLA.com, 23 Jan. 2021 Word History
First Known Use
1796, in the meaning defined above