| Female shrews in the genus Notiosorex have six mammae, so nursing their litters of 3-5 is not a problem. The young are adult-sized at about 40 days, but in captivity, stayed with their mother until about 40 weeks of age. In the wild, pregnant females have been caught from April through November, a long breeding season. Villa's Gray Shrews are externally indistinguishable from other gray shrews, and like them, make their homes in desert or semi-desert scrub habitats among plants such as agave and mesquite. Villa's Gray Shrews are found only in the central mountains of Tamaulipas, Mexico.
Head and Body: 48-65 mm; Tail: 22-31 mm
Carraway, L. N., & R. M. Timm, 2000. Proceedings of the Biological Society of Washington, 113:307.
Mammal Species of the World (opens in a new window).