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Forepaws broad and heavily clawed for digging; eyes and external ears lacking; nostrils opening upward (Fig. 10); teeth white; zygomatic arch complete; tail short and naked
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Forepaws small and delicate; eyes small but apparent; external ears present but usually short and hidden in the fur; at least some teeth pigmented with red or brown; zygomatic arch incomplete (Fig. 11); tail short to medium in length, covered with short hairs; nostrils terminal
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