164 The Rev. L. Jenyns on the Common Bat of Pennant. 



Dimensions. 



Inches. Lines. 



Length of the body, measured from the nose 



to the root of the tail 1 7 



of the head 6 



of the tail 1 2 



of the auricle 4 



Breadth of the auricle at the broadest part . 3 



Length of the tragus 2 



Breadth of the tragus Of 



Length of the arm 8^ 



of the forearm 1 2 



■ of the thumb If 



of the thigh 5 



of the shank ........ 5 



Distance measured from the carpus to the 



apex of the second finger 2 



measured from the carpus to the 



apex of the fourth finger 1 6 



Expansion of the flying membrane ... 84 

 Exsertion of the tail beyond the interfemoral 



membrane 0\ 



Strongly resembling the Noctule in its general characters, but 

 at once distinguished from that species by its inferior size, 

 weighing only eighty-two grains. Head much depressed 

 in front, convex behind, with the upper part of the occiput 

 remarkably protuberant* : no occipital crest. Muzzle ex- 

 tending three lines beyond the ears, in young specimens 

 rather elongated, which appearance wears off afterwards, 



* I have compared the skull with Geoffroy's figure of that of the Pipistrelle, which 

 it resembles in all essential particulars. 



from 



