Smithsonian National Museum of Natural History, North American Mammals
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Pteronotus gymnonotus

Big Naked-backed Bat

Order: Chiroptera
Family: Mormoopidae


Conservation Status: Least Concern.

The Big Naked-backed Bat looks much like Davy’s Naked-backed Bat, except that it is larger and weighs almost twice as much. These two species are the only naked-backed microchiropterans. P. gymnonotus sometimes roosts in the same caves as P. davyi, where it is usually outnumbered by the smaller bat. It, too, pursues flying insects, and occasionally eats fruit and pollen. It inhabits lowland forests, including forests where the tall trees that form the canopy stay green year-round.

Range: Head and Body: 55-69 mm; Tail: 21-28 mm

Range: 11-18 g


Natterer, 1843. In Wagner, Archiv für Naturgeschicthe, 9:367.


Mammal Species of the World

Distribution of Pteronotus gymnonotus