﻿42 



NORTH AMERICAN FAUNA. 



Genus ANTROZOUS H. Allen. 



1862. Antrozous K. Allen, Proc. Acad. Nat. Sci. Pliila., p. 247. 

 1864. Antrozons H. Allen, Monogr. N. Am. Bats, p. 67. 

 1878. Antrozoits Dobson, Catal. Cliiroptera J^rit. Mns., p. 170. 

 1893. AntrozoHs H. Allen, Monogr. Bats N. Am., p. 64. 



Type species. — Antrozous imllidns (Le Conte). 



GeogrcipMc (listrihution. — Austral zones from Texas to tbe Pacific, 

 aiid from the Columbia Eiver to Queretaro on the tableland of Mexico. 



1-1 1-1 1-1 3-3 



Generic characfers.- 



Dental formula : 



' 2-2 ^ ^' 1-1 ' 2-2 ' 3-3" 



J/ 



Fig. 3. — Muzzle of A^itrozous jjallidits (X 2). 



=28; 



mammae 2; muzzle truncate; 

 nostrils surrounded by a 

 horseshoe-shaped ridge (fig. 



3) ; lower li J) free in front. 

 RcmarlxS. — The genus An- 

 trozous differs so widely 

 from all others occurring in 

 America that it needs no 

 comparison Avith any of 

 these. In many ways, how- 

 ever, it resembles NyctopU- 

 ilusr of the Old World/ 

 While adult Antrozous in- 

 variably has only two lower 

 incisors in each mandible, 

 an imnmture individual from 

 Silver City, N. Mex,, has a 

 third on the right side (fig. 



4) . Tlie outer lower incisor 

 is i)robabl3^ normally present 

 in tlie young, though very 

 early crowded out by the 

 growth of the others. 



One species and one sub- 

 species are known, both of 

 which occur in tlie United 

 States. 



KEY TO THE SUBSPECIES OF AXTROZOFS. 



Forearm 48 mm. to 53 mm, ; color, whitish drab-gray iiallidns (p. 43) 



Forearm 56 mm. to 60 mm. ; color, pale yellowish, (Irab-T)rown jyacificus (p. 45) 



1 See H. Allen, Monogr. Bats N. Am. (1893), p. 65. 



