33 



ON A NEW RACE OF FLYING SQUIRREL FROM SIAM. 



By C. Boden Kloss, f.z.s. 

 Petaurista annamensis barroni, subsp. nov. 



Tijpe. Adult skin and skull (sex unknown^. Author's No. 2085, 

 CBK. Collected at Hup Bon near Si-iraclia, South-east Siam, 500 

 ft., Dec. 1915, by Ur. V. A. R. iJarron, 



Characters. Perhaps most nearl}' allied to P. annamensis, 

 Tliomas, from South Aiinam' but differing in having a well-defined 

 blackish ring round the ej'es, wliite throat, and tail black on its distal 

 third only. Upper tooth-row notably longer. 



From P. taijlon, Thomas, of south Tenasseriin^ it is distinguish- 

 ed by the greater extent of whitish grizisle on the upper surface, edge of 

 interfemoral membrane black near the fejt onl}', and greater amount 

 of black at the end of the tail which is speckled basally with whitish; 

 also apparently (as compared with an Indian Museum specinuMi col- 

 lected at Mergui by Dr. J. Anderson) by the somewhat lighter tone of 

 red on the upper surface and parachute and rather larger size. 



From P. hjlei, Boniiote, of North Siam •' it differs in the lesser 

 degree and extent of white grizzling above, in the white tin-oat, white- 

 tipped ears, white-edged parachute and drabby tail: it further lacks the 

 dark spots above and below the eye, while the membranes, limbs and 

 nnder-body are darker. It is also rather smaller. 



Colour. General colour above chestnut anteriorly, Sanford's 

 brown posteriorly, the bases of the liairs deep purplish-grey, the trunk 

 speckled with white to about the same degree as P. candidulns, 

 Wroughton, this frosting extending in a modified way to the limbs 

 and along the tail on to the int?rteiaoral membrane : throughout, the 

 majority of the white-ringed hairs have black tips. Head more griz- 

 zled than back but the black tips less distinct. Muzzle and cheeks 



1 Joinn. Bomb.iy Nat. Hist. So.-. XXIV, p. 201 ;1915). 



2 toin. fit. supra, \\ 20.'). 



3 r.z s., 11)00. p. \n, phue xviii. 



VOL. II, JUNE 1916. 



