Parti-colored Bat (Rearmouse)
The Parti-colored Bat or Rearmouse, Vespertilio murinus, is a species of bat in the family of Vesper bats known as Vespertilionidae. It is a medium sized bat with a body size of 2.5 inches and a wingspan from 10.5 to 13 inches. The average weight is 0.4 to 0.8 ounces. Its name is derived from its fur, which has two colors. Its backside is red to dark-brown, with silver-white-frosted hair. The ventral side is white or gray. The ears, wings and the face are black or dark brown. The wings are narrow. The ears are short, broad and rounded. These bats are known to live up to 12 years.