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Pacific coast: tine present on anteriomedial edge of I1; tail distinctly bicolored in young, indistinctly bicolored in adults; never more than 4 pairs of friction pads on the second to fourth digits of hind feet; level of pigmentation at or below level of median tine on I1; body size small to medium; U5 triangular, body of U1s not touching, P4 overlapping U5; zygomatic process of maxillary point...

A relatively small, pale shrew. Upperparts in summer are grayish drab above, becoming paler on flanks, with nearly white underparts (faintly tinged with buff); winter pelage is brighter, drab above, paler below; tail is distinctly bicolored, sparsely haired, drab above, white below; total length 88-107 mm (mean 96.3 mm); tail length 33-42 mm (mean 36.2 m); hind foot 11-13 mm (mean 12.2 mm); cond...