A Cottonmouth (Agkistrodon piscivorus) in Minnesota, and Historical Reports of Other Pit Vipers Unexpected in the Upper Midwest

Philip A. Cochran

doi:10.1656/1092-6194-15.3.461

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Philip A. Cochran^*

^* Biology Department, Saint Mary's University of Minnesota, 700 Terrace Heights, Winona, MN 55987; pcochran@smumn.edu.

Abstract

The collection of an Agkistrodon piscivorus (Cottonmouth) on a barge in Winona, MN lends credence to the belief that this species may occasionally be carried up the Mississippi River via commercial boat traffic. Consideration is given to reports of other crotaline snakes not expected to occur in the upper Mississippi River drainage, including Agkistrodon contortrix (Copperhead), Crotalus viridis (Prairie Rattlesnake), and Crotalus atrox (Western Diamondback Rattlesnake).

Citation Download Citation

Philip A. Cochran "A Cottonmouth (Agkistrodon piscivorus) in Minnesota, and Historical Reports of Other Pit Vipers Unexpected in the Upper Midwest," Northeastern Naturalist 15(3), 461-464, (1 September 2008). https://doi.org/10.1656/1092-6194-15.3.461

Published: 1 September 2008

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