136 Mr. O. Thomas on 



bat, sucli as Peropteryx^ but closer study shows tliat it is 

 unquestionably rehited to Diclidurus, with wliich it shares 

 the peculiar frontal cup and grooved tibia. I have been able 

 to Hnd no trace of an antebrachial sac, nor of any caudal 

 modification, but spirit-specimens will be necessary before 

 the absence of these or other analogous characters can be 

 verified. 



The first discovery of this bat is to be credited to Mr. F. V. 

 McConnell, who presented in 1908 an example obtained on 

 the Mazaruni River, British Guiana, by his collector Cozier. 

 Owing, however, to the specimen being an imperfect skin, 

 with just the front of the jaws dried in it, it was put away in 

 the collection as a " Saccopteryx," to some members of which 

 group Cytturops has so strong a resemblance. 



Imperfect as it is, this specimen, which M'as recognized by 

 the unique shape of its tragus, has, however, now been useful 

 in checking some of the characters observed in the Para 

 example, and notably in its indication that the lower pre- 

 molars of the latter are abnormal in structure. 



It is to be noticed that in his description of '■'■Vespertilio 

 ca?}iHus'" VVied states that " Der Schadel hat zwisciien den 

 Augen einen tiefen Eindruck," which suggests the frontal 

 cup of Cyttarops. But, besides the fact that Peters examined 

 the type, the figure of the tragus in the ' Abbildungen ^ is 

 sufficient to prove that Wied's bat wvas really a Peropteryx. 



6. HolocJiilus nanus, Thos. 



? . Para. 



This rare dwarf species of liolochilus was described in 1897 

 on a specimen from the island of Marajo sent to me by 

 Dr. Goeldi. 



IX. — On small Maminals collected in Jujuy hy 

 Beiior E. Budin. By Oldfield Thomas. 



(Pviblished bj' permission of tlie Trustees of the British jNJuseuni.) 



By the kind assistance of the Hon. N. Charles Rothschild, 

 the British Museum has received as a donation a collection 

 of small mammals made by Senor E. Budin during March 

 and April 1912 in Central Jujuy, North Argentina, a region 

 from which but few mammals had previously been obtained. 

 Unfortunately Sefior Budin's notes on the localities have 



