All rights reserved. This document may be used, with this header included, for noncommercial purposes within a subscribed institution . No copies of this work may be distributed electronically outside of the subscribed institution, in whole or in part, without written permission from the JHU Press . The wingspan is only about 175 mm. The pelage is short and rather scanty.
Coloration is dark brown to blackish, or somewhat brighter with a chestnut tinge.
This bat differs from all others in its greatly reduced wings, relative to the size of head and body. It has a remarkably flattened and broadened skull. The legs are short and stout. The short, triangular ears have rounded tips. It roosts in cracks beneath the bark of dead trees.