342 RODENTS OF THE GENUS SMINTHUS—TRUE. 



Upi)er premolar a little broader than long. Last molar larger than 

 the premolar, the crown forming an equilateral triangle with convex 

 sides. First upper molar with two outer and two inner cusps, and a 

 small anterior one. Second upper molar with four cusps. Last lower 

 molar elongate. 



Dr. Abbott's measurements of one of the skins (No. ffiolj ^ •> tyP©) 

 are as follows: Head and body, 2f inches (69.8 mm.); tail, 4^ inches 

 (107.9 mm.). The ear, measured from the base of the outer margin, is 

 12.5 mm. long. 



Dimensions of skull of type specimen. 



Greatest length ., 



Basilar length (Hensel) 



Zygomatic breadth 



Interorbital breadth 



Length of nasals 



Length of interparietal 



Breadth of interparietal 



Length of i>alate 



Length of palatine foramina. . 

 Length of upper molar series . 



Length in 

 millimeters. 



21.3 

 16.0 

 10.0 

 4.5 

 8.5 

 2.5 

 7.0 

 8.3 

 4.6 

 3.2 



This species differs from S. subtilis m the absence of the black dorsal 

 line and tlie greater length of the tail. I have no skulls of the latter spe- 

 cies at command, but from Brandt's figure* and the remarks made by 

 Mr. Thomas in connection with his description of ^S'. leaihemi, it appears 

 that 8. subtilis has the palate much prolonged posteriorly, which is not 

 the case in the species herein described. 



From 8. concolor, Biichner,t the present species differs in the butty 

 color of the sides of the body and head, the white under surfaces, the 

 brownish fore feet, the white claws, and the coloration of the tail. The 

 whiskers are longer than in 8. concolor. The upper premolar and last 

 molar are in line with the other molars; and the last molar is also 

 elongated. The nasals are longer. Whether the characters of the 

 palate are the same in 8. concolor and the species herein described can 

 not be determined at present, as Dr. Biichner makes no mention of 

 this part of the skull. 



From the species described by Mr. Thomas, under the name of 8. 

 leathemi, the present species appears to differ in the yellowish, rather 

 than rufous, coloration of the body, the brown color of the backs of the 

 fore feet, and the uniform brown color of the extremity of the tail on 

 both upper and under surfaces. 



Mr. Thomas gives the length of the ear in *S'. leathemi as 8.3 mm., but 

 as he does not specify from what points the measurement is taken it is 

 impossible to say whether the ear in 8. fiavus is shorter or longer, 



* Brandt, J. F. — Untersnch. Craniolog. Entwickelungsstufen derNager, pi. ii, figs. 

 15-21. 



tThe description of this species was not at hand when I rev^ised my article on Dr. 

 Abbott's Kashmir collection for publication, and I was led into the mistake of re- 

 garding the Chinese and Kashmir species as identical. 



