SCIENTIFIC RESULTS OF THE MAMMAL SURVEY. 27 



white, but the underfur is wholly dark blackish slate, without 

 the concealed suffusion of ferruginous found in the Siamese form. 

 Ears similarly long, with the proectote tending to rufous, and the 

 metectote black, but the former is of a diiller tone, approaching 

 fawn. Eyes with black upper and lower rims, without the small 

 rufous spots found in lylei both above and below the eye. Undersur- 

 face much more brownish than in lylei, nearly matching Ridgway's 

 "fawn colour", therefore very different from the brilliant rufous or 

 ferruginous of lylei. 



Parachute darker throughout than in hjlei, its upper side dark 

 chestnut brown, its lower vinaceous brown. Hands, feet and tail 

 black. 



Skull as in lylei, but the bnllee in the single specimen larger than 

 in the available skulls of lylei. 



Dimensions of the type (measured in the flesh by Oapt. Ven- 

 ning). — Head and body 455, tail 635, hindfoot 83, ear 51. 



Shull. — Greatest length 82 ; condylo-incisive length 74 ; zygo- 

 matic breadth 52; nasals 25x16-5; interorbital breadth 18-5; 

 palatilar length 37*2 ; p* and three molars 17-5. 



Habitat. — Southern Shan States. Type from Kalaw, west of 

 Taunggyi, alt. 4,700'. 



Type. — Adult male, B. M. No. 14.4.3.1. Original number 

 3374. Collected 15th May 1913, and presented to the Survey by 

 Capt. F. E. W. Yenning. 



This fine animal is a Burmese representative of the Siamese P. 

 lylei, from which it differs by its browner undersurface. 



The smaller Flying Sqtdrrels. 



Of the smaller Flying Squirrels, the Burmese collection contains 

 three species, one of them belonging to the genus Belomys, and the 

 other two to Sciuropterus, subgenus Hylopetes. 



The Belomys unfortunately is only represented by a young example 

 from Mt. Popa, and an imperfect skin without skull from Yin 

 Village, Lower Chindwin. Neither is determinable with certainty, 

 but the relationship to B. trichotis of Manipur will no doubt prove 

 to be close. 



The larger Sciuropterus seemed to be fairly numerous, and Mr. 

 Shortridge succeeded in getting 35 specimens of it. An examina- 

 tion of these shows that it is a local form of S. phayrei of Pegu and 

 Tenasserim. It may be called — 



Sciuropterus phayrei probus, subsp. n. 



Like true phayrei but tending to be lighter coloured throughout, 

 not so much in the general colour as in the greater extent of whitish 

 on the undersurface of neck, limbs and tail. General colour above 



