Ears more than double the length of the head ; tragus oval-lanceolate : fur brownish gray on the upper parts; paler beneath.

V. auritus, Desm. Mammal, p. 144. Long-eared Bat, Perm. Brit. Zool. vol. I. p. 147. pi. 13. no. 40. Shaw, Gen. Zool. vol. i. p. 123. pi. 40.


Length of the head and body one inch ten lines; of the head eight lines; of the tail one inch eight lines; of the ears one inch five lines; of the tragus seven lines; breadth of the ears nine lines; of the tragus two lines and a half; length of the fore-arm one inch five lines; of the thumb two lines and three quarters: extent of wing ten inches two lines.


Head and face flattened; muzzle somewhat swollen about the nose; nostrils with their anterior and inner edges tumid, elongated posteriorly into a sort of cul de sac: eyes small: ears extremely large, more than twice the length of the head, oblong-oval, thin, and semi-transparent; the inner margin presenting a broad longitudinal fold, which doubles back nearly at right angles to the rest of the auricle and is ciliated with hair along its external and internal edges; near the base of this fold is a small projecting lobe, also ciliated; tragus long, oval-lanceolate, with the outer margin somewhat sinuous, the inner one straight: ears united over the head to the height of one line and a half; extending round at the base to the corners of the mouth: flying and interfemoral membranes broad and ample: tail longer than the fore-arm, the tip obtuse, protruding to the extent of three quarters of a line: forehead, and anterior surface of the connecting membrane of the ears, hairy; posterior surface of the same membrane naked. Fur long and silky, brownish gray on the upper parts, paler beneath; the hair every where dusky at the roots.

A common and generally diffused species, resorting principally to the roofs of houses and churches. Flight swifter than that of the Pipis-trelle. In the living animal the ears are generally curled, the bend being directed outwards, when at rest they are sometimes wholly concealed beneath the fore-arm, the tragus alone remaining erect.