Smithsonian National Museum of Natural History, North American Mammals

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  Chiroptera · Vespertilionidae · Corynorhinus rafinesquii

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Corynorhinus rafinesquii

Rafinesque's Big-eared Bat

Order: Chiroptera
Family: Vespertilionidae

Image of Corynorhinus rafinesquii
Click to enlarge. (76 kb)

Conservation Status: Least Concern.

Rafinesque's big-eared bat inhabits forests and streamside areas throughout the southeastern United States. These agile flyers may be less frequently seen than some other bats because they leave their roosts only when it is completely dark, forage for insects in the dark, and return to their roosts before sunrise. Curiously, they prefer roosting in locations that have some amount of light. Their range overlaps that of several other forest-dwelling bats, such as the eastern pipistrelle, the big brown bat, and some members of the genus Myotis.

Also known as:
Eastern Big-eared Bat, Southeastern Big-eared Bat, Eastern Lump-nosed Bat, Eastern Long-eared Bat

Sexual Dimorphism:
Females may weigh more than males.

Average: 95 mm
Range: 80-110 mm

Range: 7.9-9.5 g males, 7.9-13.6 g females


Lesson, 1827.  Manuel de mammologie, ou d’histoire naturelle des mammifères, Roret, Paris, p. 96.


Mammal Species of the World (opens in a new window).

Distribution of Corynorhinus rafinesquii

Image of Corynorhinus rafinesquii
Click to enlarge. (57kb)