TYPICAL GROUP. 



269 



THE LONG-EARED BAT (Plecotus auritus). 



The well-known long-eared bat, of which we give an illustration in the 

 accompanying figure, is a common, though not very abundant British species, easily 

 recognised by the great length of its delicate ears. It is one of two representatives 

 of the o-enus Plecotus, forming the type of a special group characterised by the 



THE LONG-EARED BAT (nat. size). 



presence of grooves, or incipient nose-leaves, on the upper part of the muzzle 

 behind the nostrils ; and also by the ears being generally very large, and united by 

 their inner margins. 



The long-eared bat has 36 teeth, of which f on each side are incisors, and 

 f cheek-teeth ; the premolars being, what is very rare in the family, f in number. 

 The ears are much more than twice the length of the head, and are united for a 



