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any one mammal of the family Phyllostomatidae of the suborder Microchiroptera. At the end of the muzzle there is a vertical, sharpened leathery appendage (nose-leaf), which is sometimes very complex in form. There are seven subfamilies, comprising 49 genera, found in the tropics and subtropics of America. Some of these bats are insectivorous; the members of some subfamilies feed on fruit pulp, nectar, and pollen. The vampire bats of the genus Vampyrum feed on both insects and fruits; the large Javelin bats of the genus Phyllostomus prey on small vertebrates.