134 Mr. 0. TiMiiiias on 



will apjily verbatim to this species, and need not be repeated. 

 Tail much shoitcr than in E. sortUa, longer than in E. duciUa*^ 

 grey above, white below and laterally. 



ISkull almost exactly similar to that of E. ducilla, the 

 brain-case short and broad, not elongated as in E. sorAla. 

 Supraorbital edges square, not ridged. Palatal foramina 

 lon<r, reaching back to the level of the middle of m\ Poste- 

 rior nares narrow, the opening square-angled. 



Dimensions of the type : — 



Head and body 74 ; tail 49; hind foot (s. u.) 17; car 17. 



Skull: greatest length 2P5; zygomatic breadth 11-4; 

 nasals 8"5x2'8; interorbifal breadth 3* 1 ; breadth of brain- 

 case 10; pidate length 8*9; diastema 5'1 ; length of palatal 

 foramina 5*2 ; length of upper molar series 3 4. 



IJab. and type as above. 



This pretty little n)0use is exceedingly like E. sorella ex- 

 ternally except for its decidedly shorter tail. On the other 

 hand, its skull is more like that of the still shorter-tailed 

 E. ducUla. All are mountain forms, from 10,000 feet and 

 upwards. They are evidently rare locally, as in each case 

 Mr. Simons has sent home only a single example. 



17. Euneomys suhUmis, Thos. 



?. Cosmlni. 4300 m. 9th March, 1901. 

 Closely similar to the original specimens obtained by 

 Mr. Simons at an altitude of nearly 18,000 feet above 

 Caylloma, Peru. 



18. Akodon varius, sp. n. 



An Akodon of about the size and general appearance of 

 A. hirtus, but more fulvous when adult and with sharp supra- 

 orbital edges. 



2cJ,l?. Tapacari, W. of Cochabamba, 3000 m. 29th 

 March, 1901. 



(J. Paratani, 2500 m. 4th April. 



$ . Cochabamba, 2400 m. 20th April. Type. 



Fur coarse and shaggy; hairs of back about 13 millim. in 

 length. General colour coarsely lined greyish, more slate 

 mixed in some specimens, more buffy or fulvous in others, at 

 least on the posterior back. Tho type approximates to 

 " broccoli-brown" in general tone, with the rump dull buffy, 

 but some specimens are more fulvous and others are almost 

 entirely greyish brown. Sides dull drab. Under surface 

 .•soiled whitish, the tips of the hairs whitish, but their slaty 

 * Ann. & Mag. Nat. IIL^t. (7) vii. p. 182 (I'JOl). 



