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POLYDACTYLISM IN A BARREN-GROUND CARIBOU FROM NORTHWESTERN MANITOBA
1 Canadian Wildlife Service, Eastern Region, 2721 Highway 31, Ottawa, Ontario, Canada
2 Canadian Wildlife Service, Pathology Section, 6 Beechwood Avenue, Ottawa, Ontario, Canada
A polydactylous right front foot was collected from a 5-year-old female barren-ground caribou (Rangifer tarandus groenlandicus) in northwestern Manitoba (59°2l'N, 100°l3'W). We determined by gross visual and radiographic examination that the foot had a complete extra digit in the position of the ancestral 1st digit. This is the first account of a polydactylous foot in the genus Rangifer.
Submitted on July 5, 1971
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