﻿CORYNORHINUS MACROTIS TOWNSENDII. 



53 



Colorado: Larimer County, 1 (skin, Miller coll.). 

 Guanajuato: Santa Rosa, 17. 

 Michoacan : Patzcuaro, 1. 

 Oaxaca: Oaxaca, 1. 



San Luis Potosi : Hacienda La Parada, 1. 

 Texas : East Painted Cave, 1. 

 Utah: 1. 



Vera Cruz : Jico, 1. 



General remarks. — Corynorhinvs macrotis ])aJleseens differs from true 

 macrotis in its much paler, more uriform coloration. vVhile this form 

 is represented in the National Museum by numerous specimens in alco- 

 hol, the series of skins is very incomi)lete. Until this series can be 

 greatly increased the limits of distribution of the subspecies must 

 remain i)urely a matter of conjecture. 



The differences in form of the inner upper incisor which have been 

 supposed to distinguish this race from true macrotis^ appear to be 

 inconstant. While the few specimens of typical macrotis that I have 

 seen have this tooth without exception bicusj)idate, western specimens 

 vary greatly. In a series from 

 Santa llosa, Guanajuato, both ex- 

 tremes are represented, while sev- 

 eral specimens are with difficulty 

 referred to one or the other 

 (fig. 10). 



This is the bat to which Dr. 

 Harrison Allen has applied the 

 name townsendi. True toivnsendi^ 



from the Columbia River, is the dnrk northwest coast form. 



CORYNORHINUS MACROTIS TOWNSENDII (Cooper). 



Fig. 10. — Left upper incisors of Conpiorhinuft ma- 

 crotis pallencens from Santa Rosa, Guanajuato, 

 Mexico. 



however, the type of which came 



1837. Plecotus townsendii Cooper, Ann. Lyc. Nat. Hist., N. Y., IV, i>. 73. (Columbia 

 River.) 



1878. Plecotus macrotis Dobson, Catal. Cliiroptera Brit. Mus., i>. 180 (not Plecotus 

 macrotis Le Conte, 1831). 



Type locality. — Columbia River, Oregon. 



Geogra^yhic distribution. — Humid coast district of Oregon, Washing- 

 ton, and southern British Columbia. 



General characters. — Similar to typical macrotis j but much darker; fur 

 nowhere distinctly bicolor. 



Color. — Back uniform dark brown, the hairs indistinctly light i)lum- 

 beous at base, and very faintly tipped with yellowish. Belly dark 

 brown, the hairs light plumbeous at base. Ears and membranes 

 blackish. 



Measurements. — See table, page 54. 



Specimens examined. — Total number, 3, from the following localities: 



British Columbia: Comox, 1 (skin). 

 Oregon: Creswell, 1; Gold Beach, 1. 



iH. Allen, Monogr. Bats N. Am., p. 58, 1893. 



