A polydactylous right front foot was collected from a 5-year-old female barren-ground caribou (Rangifer tarandus groenlandicus) in northwestern Manitoba (59°21′N, 100°13′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.
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1 October 1971
POLYDACTYLISM IN A BARREN-GROUND CARIBOU FROM NORTHWESTERN MANITOBA
FRANK L. MILLER,
ERIC BROUGHTON