Western Mexico and Lower California. 43 



breadth 21*5; breadth across postorbital processes 50 ; inter- 

 temporal breadth 38 ; breadth of brain-case on squamosals 51 ; 

 greatest mastoid breadth 50 ; palate, length from gnathion 43, 

 breadth between outer corners of carnassials 45 ; length of 

 upper carnassial 13*4, of lower carnassial 11. 



Hah. Santa Anita, Lower California. Coll. F. Pazlk. 



Type obtained June 21, 1896. Original number 432. 

 Two specimens examined. 



This animal is no doubt a pauperized peninsular race of the 

 Californian lynx, from which it may be readily distinguished 

 by its much smaller skull. 



In the descriptions of Mearns's Lynx rufus eremlcus and 

 L. r. californicus no cranial measurements are given, but 

 such external measurements as are supplied seem to indicate 

 that these animals are about as large as the Californian and 

 Mexican examples in the Museum collection, and no mention 

 is made of their size being in any way inferior to that of the 

 ordinary L. rufus. 



Vespertilio fuscus peninsultey subsp. n. 



Size small, about a*s in propinquus and hahamewiis^ de- 

 cidedly smaller than in typkus. Dorsal fur 8-9 millim. in 

 length. Colours pale, more as in the northern forms; general 

 colour of back fawny brown, more fawn on head and fore 

 back, browner (but still very pale) posteriorly ; the basal 

 halves of the hairs slaty black, the tips fawn. 



Skull apparently very similar to that of V. f. bahamensis^ 

 both in size and shape, therefore far smaller than in fuscus 

 and miradorensis (see measurements). 



Dimensions of the type (an adult male, measured in flesh 

 by collector) : — 



Forearm 43 millim. (range 40-44). 



Head and body 61 ; tail 34; ear 14. 



Skull: basal length 14*2; occipito-gnathic length* 16'5; 

 greatest breadth 11-7 ; interorbital breadth 6*3 ; intertemporal 

 breadth 3*8 ; front of canine to back of m.^ 6'2, the same 

 below 6*7. 



Hah. Sierra Laguna, Lower California. Coll. D, Coolidge. 



Type collected July 7, 1896. Original number 385. Four 

 specimens examined. 



This little race of the United States " brown bat " is 

 readily recognizable by its small size and pale colour. It will 



* Mr. Miller, in his recent monograph, speaks of " occipito-nasal " 

 length without explaining how it is taken. It is apparently to the front 

 of the premaxill^e or "gnathion," and is so taken here. 



