small Mammals from Jitj^iy. Ill 



8. Akodon alhiventer, Tlios. 



^ . 52. Laguna, Duiazno, Maiiiiara. 4500 m. 



^. 5<), 61 ; ?. 58. Ceiro de hi Lagunita, E. of Mai- 

 inaia. 4500 ni. 



Type locality, Lower Caclii, Salta (C. Spegozzini). 

 Specimens also received I'rom C^liallapata and Potosi, Bolivia ' 

 {F. 0. Simims). Evidently the common Akodon of the 

 " Octodontomys area." 



9. Akodon bacchante sodalis, subsp. n. 



S. 47,54,60; ?. 4y. Cerro de la Lagunita, E. of 

 Maimara. 4500 m. 



Similar to true bacchante in all essential characters, but 

 rather paler throughout. Upper surface olive-grey, without 

 the somewhat bistre tone of baccJiante. Under surface more 

 prominently v/hite, the inguinal region snowy white. Hands 

 white, the metacarpals scarcely tinged with fulvous. Feet 

 lighter fulvous than in bacchante, the toes white or whitish. 

 Dimensions of the type : — 



Head and body 115 mm. ; tail ^d ; hind foot 25 ; 

 ear 20. 



Skull : greatest length 29*5 ; condylo-incisive length 26*8 ; 

 zygomatic breadth 14-5 ; nasals 12*3 ; interorbital breadth 

 4"7 ; palatilar length 12*2; palatal foramina 7 : upper molar 

 series 4 '3. 



Hab. as above. 



Type. Old male. B.M. . no. 12. 12. 12. 19. Original 

 number 60. Collected 11th April, 1912. 



The type of A, bacchante having been collected out of the 

 " Octodontomys area/' at Choro, in the Secur^ Amazonian 

 watershed, it is not surprising that its Jujuy relative proves 

 to be subspecitically separable. 



" Inhabits the high ground where the Vizcachas are found. 

 But little common, and quite unknown to the inhabitants. 

 Not strictly nocturnal, coming out for food about sunrise. 

 Trapped with meat bait. Ordinarily lives on seeds." — E. B. 



10. Ctenomys budim, sp. n. 



cJ . 48, 53 ; ? . 50, 51. Cerro de Lagunita, E. of Mai- 

 mara. 4500 m. 



A brown Ctenomys, near C. /rater. 



Size rather larger than in C.f rater. General colour above 

 ])ale vaiid\ ke-bro\vn, not unlike that of C. tuciunaniis, daiker 

 and richer than in C. /rater. Muzzle and lips not darkened. 



