360 Mr. 0. Thomas on 



Passing \\o\x to the Zovro of Buenos Ayres, an animal 

 piobablv Uiesame as the Agouaraciiay of Azara, we find that, 

 owing "'to its having been generally, though erroneously, 

 known as Canis azarce, no tenable name exists for it. All 

 the numerous names put into its synonymy by Burmeister 

 Mivart, and Trouessart are accounted for elsewhere, and I 

 therefore now give it a new name. ^ 



As it has, however, been so long connected with Azaras 

 name, and tlie word azarce (l)eing synonymous with hrasili. 

 enns) now disappears altogether, so that no confusion caii 

 arise, 1 propose to apply a term which equally recalls the 

 fiimous Spanish naturalist who first discovered it. 



Pseudalopex azarica, sp. n. 



Cams azarce, auctorum, nee Wied. 



Size much smaller than in the (hilpeo. General colour 

 above coarsely grizzled grey. Below mixed brown and grey, 

 the soiled brownish of the postaxillary region diffcrmg very 

 noticeably from the white of the corresponding parts ot 

 Ps culpcens and its allies. Chin and interramia black ; upper 

 part of throat white, lower grey-brown. Inguinal region 

 white. Head buffy, the hairs tipped with whitish. Baclcot 

 ears buffy brown, an area behind them richer bufty. i^oio 

 limbs to elbows and hind to above heels bright tawny or 

 ochraceous, a prominent bhick patch on tlie hinder side ot 

 the thigh, ilump and hams grizzled greyish like back, not 



ferruginous. , , n i i i 



Skull with fairly flattened frontal region and well-devclopea 



widely expanded postorbital processes. 



Dimensions of the type (measured in the flesh) :— 



Head and body b7U mm.; tail 33G; hmd foot 14b; 



Sk'u'll : greatest length 1 17 ; condylo-basal length U^^^5 ; 

 zygomatic breadth 7b-.3 ; nasals 55 ; interurbital bicadthoU; 

 tip to tip ot postorbital processes 42 ; breadth of bram-case 47 ; 

 palatiil lenglli 73 ; />m' 13 ; m' and m' combined 1 r8. 



JJul>. rrovincc of liuenos Ayres, probably extending nortli- 

 wards to Paraguay, 'i'ype from Mar del Plata, S.L. Buenos 



^^'r^ne. Adnh femah'. B.M. no. 12.2.17.3. Original 

 nuniUr .0. Collected 10th Angu.t, I'Jll, and presented by 



\V. A. Smitiiers, Estp . ,wr r 



As shown by Burmeister, this species differs from its 



nearest ally, the " Chilla " of Cl.ili, by its larger size and the 

 3ie broadly expanded frontal region of the sknll. 

 Besides a series from Mar del Plata, the Museum contains 



more \> 



