188 Mr. O. Thomas on 



Of the exteiual characters of B. h. Jrosti I am able to say 

 notliiiijif. 



It will thus be seen that the Museum is indebted to 

 Mr. Frost for a donation of very great scientific value, as 

 series of such skulls are very rarely obtained, and tliis ono 

 represents both a verification of the Tali Aboe locality and 

 the discovery of a new subspecies. 



AVilh regard to references that Jiave been made to " domesti- 

 cated or semi-domesticated " I5abirus8ap, Mr. Frost states that, 

 at least in Buru and Tali Aboe, these animals are never 

 domesticated, as they will not live in harmony with the native 

 ))igs, which are ubiquitous. 



lie also says that the reason it is so difficult to obtain 

 females is that the boars put up such a plucky fight against 

 the dogs used in hunting tiiat it is impossible to get at the 

 sowsiuitil such time as the male has been killed, thus enabling: 

 the females to get safely away. As a result, ver}'^ few 

 n)useums possess female specimens, and our own collection 

 only contains one single immature skull of that sex. 



XXV. — A Further Collection of Mammals from Jujuy. 

 By Oldfield Thomas. 



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



During the winter of 1919 — April to August — Sr. E. Budin 

 made collections of mammals on tlie lower grounds of Jujuy, 

 firstly in the near neighbourhood of the town of Jujuy, at an 

 altitude of rather more than 1200 metres, and then on the 

 still lower levels to the east, wjiere the Rio Lavallen, lower 

 down (northwards) called the Rio San Francisco, forms part 

 of the upper waters of the Vermejo system. On this river 

 the place where Sr. Budin collected was Villa Carolina, some 

 20 kilometres to the east of San Pedro de Jujuy, and there- 

 fore in tho same faunal district as Manoel Elordi and Tar- 

 tagal, where lie had j)reviously found such interesting things. 



A few additional S|)ecimens were obtained at Yuto, about 

 70 km. north of V^illa Carolina. 



The present collection adds considerably to our knowledge 

 of the Jujuy fauna, and contains examj)lesof four new forms, 

 of which the most noticeable is a Marmosaoi a more northern 

 type than any previously recorded from Argentina. 



