| Very little is known about the natural history of Preble's Shrew, which has been found in widely separate localities in much of the western United States. Specimens have been collected at elevations of 1,280 m in Oregon and 2,750 m in New Mexico. These shrews occur in arid or semiarid shrub-grass associations, in openings in coniferous forest where sagebrush grows, and in wet areas such as stream banks, marshes, and wet meadows. Features that distinguish them, other than their small size, are a grayish back and silvery underside and a bicolored tail that is olive-brown above and hazel below, darkening toward the tip. Details of its teeth and skull structure enable scientists to distinguish Preble's Shrew from other shrews. Late-Pleistocene fossils of this shrew have been found in caves in New Mexico.
Also known as:
Jackson, H.H.T., 1922. New species and subspecies of Sorex from western America, p. 263. Journal of the Washington Academy of Science, 12:262-264.
Mammal Species of the World
Mammalian Species, American Society of Mammalogists' species account