. The Canadian field-naturalist. 352 The Canadian Field-Naturalist Vol. 107. Figure 1. Black Redhorse (Moxostoma duquesnei), from Fishes of Illinois by Philip W. Smith (1979), by per- mission of the University of Illinois Press, Urbana. The Wisconsin River watershed above the con- fluence of Blue Mounds Creek with the Wisconsin River has not been adequately sampled for the Black Redhorse. If anyone collects a redhorse in these waters or any other location in Wisconsin with a slate colored caudal fin, 44 to 47 scales along the lateral line, and a swollen snout that may overhang its mouth (see F
. The Canadian field-naturalist. 352 The Canadian Field-Naturalist Vol. 107. Figure 1. Black Redhorse (Moxostoma duquesnei), from Fishes of Illinois by Philip W. Smith (1979), by per- mission of the University of Illinois Press, Urbana. The Wisconsin River watershed above the con- fluence of Blue Mounds Creek with the Wisconsin River has not been adequately sampled for the Black Redhorse. If anyone collects a redhorse in these waters or any other location in Wisconsin with a slate colored caudal fin, 44 to 47 scales along the lateral line, and a swollen snout that may overhang its mouth (see Figure 1), please preserve one specimen and call Don Fago collect at (608) 221-6366 as soon as possible. The Golden Redhorse {Moxostoma erythrurum) is the most eas- ily confused redhorse with the Black Redhorse. The Golden Redhorse has 40 to 42 lateral line scales and a snout that is bluntly pointed to rounded but not swollen or overhanging its mouth. Acknowledgments We thank Robert E. Jenkins, Department of Biology, Roanoke College, Salem, Virginia, for con- firming the identification of the Black Redhorse spec- imen collected on 22 April 1992. This article was crit- ically reviewed by Tom Pellett and Wendy McCown. Permission to use the line drawing of the Black Redhorse from Fishes of Illinois (1979), by Philip Smith, was granted by University of Illinois Press. Literature Cited Becker, G. C. 1983. Fishes of Wisconsin. University Wisconsin Press, Madison, Wisconsin. 1053 pages. Fago, D. 1992. Distribution and Relative Abundance of Fishes in Wisconsin. VIII. Summary Report. Wisconsin Department of Natural Resources Technical Bulletin Number 175. 378 pages. Greene, C. W. 1935. The distribution of Wisconsin Fishes. Wisconsin Conservation Commission, Madison, Wisconsin. 235 pages. Jordan, D, S. 1878. Contributions to North American Ichthyology -III. A synopsis of the family Catostomidae. Bulletin U. S. National Museum Number 12, pages 97-221. Phillips, G. L., W. D. Schmid, and J.
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