Mammals from Jujuy. 609 



The three localities at which tho specimens were obtained 

 were : — 



Al/atrito. — 2600 metres altitude, situated about 15 km. 



N.E. of Muimara, the place where Sr. Budin first 



collected. 

 Sierra dp. Zenfa. — Altitude 4500 m., a range of mountaius 



luiining- north and south along the eastern edge of the 



Tilcara Department. 

 Uiguerilla. — 2000 m., in the Department of Valle Grande, 



about 10 km. east of the Zeuta rarge and 20 km. of 



the town of Tilcara. 



1. Pseudalopex culpceus^ Mol. 



? . 1410. Alfarcito, 2G00 m. 



$ . 14oo. Sierra de Zenta, 4500 m. 



2. Conepatus ojax^ Thos. 

 S . 1411. Alfarcito, 2600 m. 



3. Sciurus (Mesosciurus) ar</entinius, sp. n. 



c?. 1496, 1506, 1516 ; ? . 1495, 1504, 1512, 1513. Hi- 

 guerilla, 2000 m. 



A yellow-bellied squirrel with a strong resemblance to 

 S. hn^'manni and griseogena of noithern S. America. 



Size about that characteristic of Allen's Mesoschirus. Far 

 rather short and coarse, hairs of back (winter) about 11- 

 12 mm. in length. General colour above bufFy olivaceous 

 brown, a])proaching " Dresden brown," the colour quite like 

 that of many specimens of true hqffmanni. Under surface 

 clear " ochraceous buff," the hairs this colour to the roots ; 

 demarcation on sides rather sharply defined. Eyes with 

 their upper and lower lids buffy. Ears rich reddish (near 

 " vinaceous tawny "), a patch behind them cinnamon-bnff." 

 Hands and feet strong buffy, like belly. Tail broadly 

 washed with strong buffy or ochraceous buffy to the tip, the 

 hairs mostly black at base, then- buffy, with a black sub- 

 terminal band and buffy tip. No tendency to a blackish tail- 

 tip, the terminal hairs being the most broadly washed with 

 buffy of all. 



Skull of about the size of that of S. hoffmanni., but it is 

 less bowed and convex above, and (perhaps as a consequence) 

 the incisors are rather more directed forwards (index b7°-90°, 

 as compared with 80°) than in other members of the group. 



