2l6 MAMMALS OF PENNSYLVANIA AND NEW JERSEY. 



Habits, etc. I know of no reference to the habits of this bat, nor have I 

 ever seen it alive to distinguish it from other species of small brown bats 

 found in the same regions. 



Description of species. In color and size not certainly distinguishable from 

 Myotis, but easily separated by a look at the upper front teeth, or incisors.. 

 In Rafinesque's brown bat there is only i on each side, separated by a space 

 from the large pointed fang or canine tooth. In the little brown (Afyotis) 

 bats these incisor teeth number 2 on each side, or 4 in all. The color of 

 humerahs is "dull umber brown above, paler below, the fur everywhere 

 plumbeous at extreme base, but the dark, basal color less well defined than in 

 other species with which Nycticcius is found associated." Miller. The teeth 

 are distributed as follows : incisors, *-J ; canines, ^ ; premolars, -*~* ; molars, 



g-H-Jo. 



Measurements. Total length, 90 (3^) ; tail vertebrae, 36 (i-jV) > forearm,. 



36 



