ANTROZOUS. 

 Fig. 65. 



GT 



A. pallidas. 



Skull long, not depressed, slightly crested at posterior part, 

 tapering anteriorly. 



Dentition. 

 Molars 1. Canines i-. Incisors^. Canines 1. Molars i- = 28 teeth. 



Upper Jaw.— The superior incisors large, pointed, separated 

 by a nan-ow space. Canines well developed, with a small basal 

 internal cusp. No small premolar posterior to canine, as in 

 Lasiurus; molars as in that genus. 



Loiver Jaw— Incisors trilobed, the two centrals placed ante- 

 riorly to laterals. Canines with an acute basal cusp which nearly 

 touches the second premolar. The first premolar simple and 

 smaller than the second. Molars not peculiar. 



This genus differs from VesjDertilio in the high and slender 

 snout ; the crested and narrow skull ; the elevated broad ears, 

 and in having one incisor less on either side in the upper and 

 lower jaw. Indeed, the latter fact is alone sufficient to separate 

 it, for although the incisors in the upper jaw as a general rule 

 are subject to considerable variation, a departure from the usual 

 number in the lower jaw is a matter of more significance. 

 Antrozous is the only instance in this extensive family of such 

 variation. 



Major Leconte (Proc. Phila. Acad. Nat. Sci. VII, 1855, 43V) 

 described a bat from California under the name Vespertilio 

 pallidus. The changes which have taken place in the classifica- 

 tion of Cheiropjtera of late years, and especially the greatly 



