FAUNA AMERICANA. 19 



Tail entirely comprised in the interfemoral 

 membrane, and very extensive ; fur soft and thick. 



Sebaceous glands beneath the skin of the face, 

 affecting different forms and dimensions, according 

 to the species. 



Habit. Nocturnal ; hibernating in caves, sus- 

 pending themselves from the sides of vaults, ca- 

 verns, &c. by their hind legs, the head doAvnwards, 

 and the body enveloped by the wing membranes; 

 feeding on insects which they catch during the 

 crepusculum ; producing generally only one young 

 at a birth ; flying easily and silently. The organ 

 of hearing is acute, that of touch veiy perfect. 



Inhabit the temperate regions of both conti- 

 nents. 



Species. 



1. Vespertilio caroliniensis, Geoff. Ann. Miis. 

 d'hist. Nat. tom. 8. pi. 47. 



Chai\ Essent. Ears oblong, of the size of the 

 head, in part hairy ; auriculum demi-cordiform ; 

 colour above chesnut brown, beneath yellow. 



Description. Ears of moderate size, without 

 folds at the internal border, their external surface 

 furnished with fine hair on the first half; auricu- 

 lum nearly cordit'orm ; extreme point of the tail 

 free ; colour chesnut brow n above, yellowish be- 

 neath, each hair being blackish-cinereous at base. 



Inhabit the neiijhbourhood of Charleston, South 

 Carolina. 



