[O. E.] An animal with wings of a thin membrane of skin. The finger bones are very Jong and slender, and the membrane is stretched between them and extends from the arms to the legs. It is filled with nerves, so that blind bats can fly with as much confidence as those that have the use of their eyes. The Bat family is called Cheiroptera, or wing-handed animals. They feed on minute insects, and sleep during the day in old ivy-covered buildings, hollow trees or caves. When sleeeping the bat suspends itself with its head downwards, and hangs by the curved claws of its hind feet. If it alights on the ground, it has difficulty in taking to the wing; but when hangirg it unhooks itself, and its wings are at once free to strike the air. The collared fruit bat of India is from its size and color named the flying-fox, and feeds on fruit. Fruit bats suspend themselves by one foot when sleeping, tucking the other foot under the wing. Vampire or blood-sucking bats inhabit tropical America. They bore little holes in the skin of their sleeping victim, or shave off a piece of skin. (See Guano.)