﻿44 



NORTH AMERICAN FAUNA. 



Oil the back the far is pale drab gray, most of the hairs with faintly 

 dusky tips. Belly grayish white, tinged with drab on sides. 



ShiU. — The skull of typical Antrozous palUdus (fig. 5) varies in greatest 

 length from 18 mm. to 20 mm., and in zygomatic breadth from 11 mm. to 

 12.5 mm. Brain case, rostrum, and palate broad. Length of bony 

 palate behind molars (exclusive of median spine) usually less than 

 width at base of median spine. 



Teeth. — The teeth (fig. 0 ^r) are large and strong. Upper premolar 

 transversely long and narrow. First lower ju^emolar small and closely 

 wedged between canine and second premolar. 



Measurements, — See table, page 16. 



Fig. 5.— STruHs of {a) Antrozoxis pallidus and (&) Antrozous 2yallidus j^aciflcus (X 2). 



Speeimens examined. — Total number, 61, from the following localities: 

 Arizona: ^Nloiitli of Colorado River, 1; Yuma, 5. 



California: Old Fort Yuma, 1; Owens Valley, 2; Panamint Valley, 1; Walker 

 Basin, 2. 



Nevada: Aniargosa Desert, 1; Timpalinte Mountains, 2. 

 New jNIexico: Silver City, 4 (skins). 

 Texas: Conistock, 6: Devils River, 8; El Paso, 1 (skin, type); Fort Hancock, 

 20 (3 skins); Painted Cave, 3; Paisano, 1; Sycamore Creek. 6. 

 General remarJcs. — In the original description of Antrozous pallid us 

 tlio animal is said to be a native of California, but both Baird ^ and 

 Harrison Allen ^ have shown that the type specimen came from El Paso, 



1 Rept. ]\rox. BoiuKl. Snrv., II, p. 5, 1859. 

 ^Monogr. N. Am. Bats, p. 69, 1864. 



