608 Mr. O. Gliomas 071 



As to whether or not these larvre are parasitic in their 

 habitat is a matter of some doubt. It is probable that they 

 live in salt or brackish water, and that their presence in the 

 branchial chauibers of crabs is purely accidental. The 

 structure of their buceo-pharyngeal organs, and especially 

 their possession of well-developed longitudinal pharyngeal 

 ridges, show that they aie, to some extent at least, sapro- 

 phagous (5ee Keilin/l915, I.e. pp. 127-13,2). They pro- 

 bably feed on the detritus of variable nature, which they 

 find in the branchial chamber of crabs, but it cannot be 

 denied that they may also obtain food, in the form of blood or 

 mucus, from the gills of the crab, by inflicting wounds with 

 their well-developed lateral hooks and the dentate process 

 on the ventral surface of the head. 



LX. — 071 a furtlier CoVectioTi of Mam 7n ah from Jujfiy 

 oUained hy Sr. E. Budin. By Oldfield ThomaS. 



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



DUEING April, May, and June of tliis year Sr. E. Budin 

 returned to the region where his first collection had been 

 made in 1913, as lie kneu^ of a number of species which lie 

 had not succeede ' 

 procure examples. 



In this respect he was exceedingly successful, as the 

 present collection, consisting of one hundred and seventeen 

 sj)ecimeiis, included examples of no less than five new species, 

 besides nice sets of various other forms which had been 

 jireviously obtained by him in this and neighbouring provinces. 



How much Sr. Budin has contiibuted to our knowledge 

 of the mammalogy of this region is shown by the fact that of 

 tw^enty-two Sjiecies in t!ie present collection no less than fifteen 

 have been now- or previous!}' discovered by him, w^hile of the 

 thirty others from Jujuy sent in earlier collections he was the 

 discoverer of eighteen, so that he is the first captor of no less 

 than thirty-three of the, known mfimmals of Jujuy. 



OF the collection now dealt with the most interesting are 

 the squirrel, never obtained before in the Argentine *, and 

 the Neotojnys, a swamp-rat congeneric with a Peruvian 

 species, and a very striking addition to the .fauna of Jujuy. 



* Though recorded, on the evidence of natives and of crnawed nut- 

 shells by Matschie, SB. Ges. Nat. Fr. 1894, p. 61. 



