new S -American Mammals. 573 



is readily distinguishable by its cinnamon-washed sides and 

 rump and the more bLickish backs to its ears. Mr. Car- 

 ruthers's Karakoram specimens of niacrotis are, like these, in 

 full winter pelage, and have afforded good material for 

 comparison. 



LXVI. — Three new S.- American Mammals. 

 By Oldfield Thomas. 



(Published by permission of the Trustees of the British Museum.) 



P seudalopex smithersl, sp. n. 



Ps. culjyceiis group, but the body reddish tIirou2,hout. 



Size apparently rather less than in cuJpceus. Fur soft and 

 thick, not very long. Colour wholly unlike that of any 

 known Pseudalopex, owing to the black on the tips of the 

 hairs, which forms so prominent a feature in the colouring of 

 other species, being here replaced by rich ochraceous red, 

 the underfur being still creamy buff terminally and slaty 

 basally. On the tail alone the terminal brush is, as usual, 

 black, the bases of the hairs buffy, and the hairs of the caudal 

 gland are black terminally and white for their basal two- 

 thirds j the hairs of the rest of the tail tipped with rich 

 ferruginous. As a result we have an animal which is bright 

 reddish, head, body, and limbs, though, owing to the buffy 

 underfur, the colour is not as strong as in some of the purely 

 red Canidse. Under surface dull buffy whitish on throat 

 and lower belly, deeper and more pinkish buffy on the chest 

 and sides of belly. Ciiin with a slight darkening, as in 

 culpceus, not a definite black patch as in the azarica group ; 

 nor is there any trace of a dark patch on the back of the. 

 thighs. 



l3imensions, owing to the specimen being a made-up 

 tanned skin, not able to be taken, but the size appears to be 

 somewhat less than in Ps. cuJpceus. 



Hah. Sierra de Cordoba, Argentina. 



Type. Adult skin, without skull. B.M. no. 14. 3. 18. 1. 

 Obtained and presented by W. A. Smithers, Esq. 



This most remarkable mountain-fox is closely related to 

 Pseudalopex culpoius, but is at once distinguished from that 

 and every other member of the genus by the replacement of 

 the grizzled black and white of the body by rich ferruginous. 



