﻿54 



NORTH AMERICAN FAUNA. 



General remarlts. — Corynorhinus macrotis toicnsendii is the dark north- 

 west coast representative of the species. Iii coloration it bears a close 

 resemblance to the other bats peculiar to the same region. It is so 

 different in general ai>pearance froDi macrotis and paUcscens that it 

 needs no special comparison with them. More material is necessary 

 before the exact relationship of this form to the others can be determined. 



While this is the true to^cnsendn of Cooper, it is not the bat to which 

 Harrison Allen has applied the name. The latter is C. macrotis pal- 

 lescens. It was on a specimen of this form from Vancouver Island that 

 Dobson based his description of 'PJecotvs^ macrotis in the Catalogue of 

 Chiroi)tera in the British Museum. 



Average measuremenis of suh species of Cojnjnoi-hhuis. 



Subspecies. 



Locality. 



macrotis 



pallescens . 



townsendii 



South Carolina : Harcleerille 

 Kentucky : Bowling Green . . 



Louisiana : Houma 



Arizona : Keam Canyon 



Fort Huacliuca 



Colorado : Larimer County . . 

 Texas: East Painted Cave ... 

 Guanajuato : Santa Eosa 



1? 

 1^ 105 

 4$ ?106 



191 ;iU5 



Icf ; 95 



li 



...21 



52 '22 



1^ 



10 41 



10 43.4 

 48. 5 21. b] 9. 4 41. 5 

 49 20.6' 9. 6 42. G 

 45 19 19 .... 



73 ... 

 77,32 



19 

 10 



British Columbia: Comox 1 I9 



Oregon: Gold Beacli j 1$ 



Ores well I9 



19 i |.... 21. ej 9.G44 



i 90 '45 21 



99. 3 4S. 1 20 

 21. 



9. 6 41 

 9 41. 9 

 410 42 

 9. 4 44 

 9.8 43 

 I 



7.5' 



6.6 



33.4 



23 14 



73 33 



77133. 9i23. 7 

 76 



80 33 24 



77 



14.6 

 12.7 



34 j21 U 



' Type. 



Subfamily VESPERTILIONIN^. 

 This subfamily contains the great majority of ^NTorth American Ves- 

 pertilloniiUv. Those of its members that occur in the region in ques- 

 tion may be known by their simi)le muzzles and nostrils, separate ears, 

 ami)le interfemoral membranes, and six incisors in the lower jaw, 



KEY TO GEXERA OF YESPEETILIOXIX OCCUERIXG LN" AMERICA XOETH OF 



PJ.XAMA. 

 [Based on dental characters only.] 



Upper incisors 2. 



Upper premolars 2. 



Mandibular tooth-row more than 8 mm DosnpUrus (p. 115) 



Mandibular tooth-row less than 7 mm. 



Third lower incisor much smaller than second or i\r»t . . Bliof/eessa (p. 122) 



Third lower incisor about equal to second or first Xyciiceiiis (p. 118) 



Upp^r premolars 4 Lasiiwus (p. 105) 



Upper incisors 4. 



Upper premolars 2 VespertUw (p. 95) 



Upper premolars more tlian 2. 

 Upper premolars 4. 



Lower premoLars 4 Pipistrelhis (p. 87) 



Lower premolars 6 Lasioniicteris (p. 85> 



Upper premolars 6 Myoiis (p. 55> 



