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General color silvery gray bordered with rusty lower sides, back and tail gray with mane of stiff, black-tipped hairs; lyre-shaped temporal ridges on braincase (Fig. 69a); lower posterior margin of mandible with prominent step (Fig. 69a)
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General color red to reddish or pale buffy yellow, back and tail without mane; V-shaped temporal ridges on braincase (Fig. 69b); lower posterior margin of mandible without prominent step (Fig. 69b)
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