144 EUPETAURUS CINERRUS. 



value of it, as — owing to the worn state of the teeth in 

 the single available skull (Thomas' type) — it was impossible 

 to Oldfield Thomas to say how many extra superficial 

 grooves there may have been. The very exactly drawn 

 figures (plate 7 , figs. 1 and 2) will give a clear idea of 

 the peculiarities of the teeth and at the same time show 

 the form of the tympanic bullae , which were smashed in 

 the skull of the type figured in the J. A. S. B. above 

 mentioned. 



Our specimen from Tibet agrees in size, color of the fur 

 and peculiarities of the skull exactly with Thomas' accurate 

 description. 



The discovery of this new form among the flying squirrels 

 anew is a proof of the acute discernment of Mr. Oldfield 

 Thomas. It only is to be regretted that he has chosen the 

 name cinereus for his new species , a specific title very easy 

 to confound with the name cineraceus bestowed by Blyth 

 on another Pteromys-sipecies too from the Indian continent. 



Notes from the Ueyden Museum , Vol. Jdt. 



