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Upper incisors stout, grooved along lateral border; color brownish mixed with gray, black and yellow; hind foot about the same length as tail; six plantar tubercles on the hind foot (Fig. 62a)
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Upper incisors slender and smooth; color brownish gray or auburn to reddish; hind foot longer than tail, or if approximately the same length, then usually with only five plantar tubercles on the hind foot (Fig. 62b)
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