124 Merriam American Wood Rat*. 



General cl traders. Similar to N. intermedia in external appear 

 ance, but differing in important cranial and dental characters, 

 which place it in the mexicana -pinctorum series, of which it is an 

 aberrant member. M ? with 3 instead of 2 salient angles on 

 outer side a unique character, 



Color. Upper parts buffy clay color } everywhere finely lined with black 

 hairs ; under parts white, the under color plumbeous and showing through 

 except in a narrow strip along the median line where the hairs are white to 

 roots ; fore and hind feet pure white ; tail bicolor, dusky above, white 

 below. 



Cranial diameters. Skull similar to that of me.ticana but differing from 

 mexicana in the following particulars : Nasals narrower posteriorly and 

 reaching posterior plane of lachrymals ; ascending branches of premaxilhe 

 exceeding nasals but little ; audital bulhe less globular; froiitals much broader 

 posteriorly. 



Dental charades. Molars as in- mexicana ; m * with a strongly developed 

 antero-internal lobe (having 3 instead of 2 salient angles on inner side) ; m 5 

 with antero-external loop (having 3 salient angles instead of 2 on outer side, 

 and 2 reentrant angles instead of 1.) 



Neotoma fuscipes streatori subsp. nov. 



Type from CARBONDALE, AMADOR Co., CALIFORNIA. No. 04,439 J^ ad. 

 U. S. Nat. Museum, Department of Agriculture Collection. Collected April 

 4, 1894, by Clark I*. Streator (Original number 3685). 



Measurements (taken in flesh). Type: -Total length 382; tail vertebrae 

 175 ; hind foot 38. Ear from anterior base 25 (in dry skin). 



Average measurements of 3 adult specimens from type locality : Total 

 length 380 ; tail vertebrae 183 ; hind foot 37. 



General characters. Similar to N. fuscipes in size and color, but 

 ears broader; ankles somewhat darker; hind feet from ankles 

 pure white. Cranial characters pronounced. 



Color. Upper parts dark grizzly brown, strongly suffused with fulvous, 

 which is brightest and palest on the sides. Under parts creamy white. 

 Tail bicolor, blackish above, whitish below, with distinct line of demarka- 

 tion ; black upper surface covering slightly more than ha It' of circumference 

 of tail. Ankles dusky, in sharp contrast with pure white of feet, and darker 

 than legs ; dusky ankle patch covering both sides of but not reaching me 

 tatarsus, leaving outer side of heel white. 



Cranial characters. Skull similar to that of N. fuscipes dispar ; palate 

 short, barely equalling length of interpterygoid fossa and of basisphenoid 

 [much longer in fuscipes] ; incisive foramina reaching back past plane of 

 first molars [not reaching this plane in Jusdpes] ; pterygoid fossa narrow 

 and rounded anteriorly as in dispar. 



Neotoma fuscipes dispar subsp. nov. 

 Type from LONE PINE, OWENS VALLEY, CALIFORNIA. No. US c? ad. U. 



