; order Chiroptera, suborder Microchiroptera)
A family of bats, in many species of which a glandular sac is present in the propatagium. The third digit is elongated and folds twice (into an N shape). The ears are separate, with a small tragus, the small tail projects from a loose sheath on the dorsal side of the uropatagium, and the nose is simple and pointed in many species. Sac-winged bats often roost in the open or in well-lit cave entrances. They are distributed throughout the New and Old World tropics. There are about 13 genera, with about 40 species.
Subjects: Zoology and Animal Sciences.