30 



VESPERTILIONIDjE. 



which we have alluded approach in colour to a fuli- 

 ginous-brown on all parts, and tinged with ash-colour. 

 Flying membrane dusky ; the part contiguous with the 

 body generally hairy both above and beneath ; but in 

 some specimens this peculiarity is by no means con- 

 spicuous. Thumb short and feeble. 



The colour is said to be much darker in young than in 

 old specimens; a circumstance which is also observed in 

 some other species, as V. Daubentonii, the Pipistrelle, &c. 



Dimensions: — 



Length of the head and body 



, , of the head 



, , of the tail . 



,, of the ears 

 Breadth of the ears 

 Length of the tragus 

 Extent of the wings 



Dentition : 



I. ^ : C. I : F. M. ^ : M. g = {f. 



