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Color clear gray above, sometimes lightly washed with brown, white underneath; tail dark gray bordered with whitish; back of ears whitish; melanism common; five upper cheek teeth on a side (anteriormost one is small and peg-like)
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Color dark gray flecked with rusty yellow, belly bright rust (color variants of white or black sometimes occur); tail bordered with rust; back of ears orangish; only four upper cheek teeth on a side
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