The White-footed Mouse, (Peromyscus leucopus), is a species of rodent native to North America. Its range extends from Ontario, Quebec, Labrador and the Maritime Provinces (excluding Newfoundland) south to the southwestern United States and Mexico. In Texas this creature is known as the Woodmouse.
The adult of this species measures 3.5 to 3.9 inches in length, not counting the tail, which can measure an additional 2.5 to 3.8 inches. It weighs typically about an ounce. It has a maximum life span of about 96 months, but most individuals live between 45 and 48 months. In northern climates life spans drop by another 50 to 75 percent, with most living no more than 12 to 24 months of age.
This species is similar to the Deer Mouse, and may also carry hantaviruses, which are known to cause severe illness in humans. It has also been found to carry the Lyme Disease causing spirochete, Borrelia burgdorferi.