298 EODENTIA. 



* Pteromys alboniger,' Hodgson. 



Sciuroptenis alhoniger, Hodgson, Journ. As. See. Beng. vol. v. 1836, p. 231; Cal. Joum. Nat. Hist. 

 vol. iv. 1844, p. 293; Proe. Zool. Soc. 1856, p. 403 ; Ogilby, Royle's 111. Himal. Bot. Mem. 

 Mamm. 1840, p. 13; Gray, Hand List Mamm. B.M. 1843, p. 135; Cat. Nepal Mamm. 

 Hodg. Coll. 1846, p. 22 ; Blyth, Joum. As. Soc. Beng. 1847, vol. xvi. p. 866; ibid. 1859, 

 vol. xxviii. p. 278; Cat. Mamm. As. Soe. Mus. 1863, p. 97; Horsfield, Cat. Mamm. E. Ind, 

 Co.'s Mus. 1851, p. 163; Proe. Zool. Soc. 18f>6, p. 403; Jerdon, Mamm. Ind. 1867, p. 179. 



Sciuroptera tnrnbuUii, Gray, Proe. Zool. Soe. 1837, p. 68 ; Blyth, Journ. As. Soc. 1847, vol. xvi. p. 866. 



Pteromys ttirnbulUi, Gray, Charlesworth's Mag. Nat. Hist, (new series), vol. i. 1837, p. 584; Wagner, 

 Sehreber, Saugeth. Suppl. vol. iii. 1843, p. 224; Schinz, Syn. Mamm. vol. ii. 1845, p. 56. 



I obtained skins of this species at Teng-yue-cliow. It was first described from 

 Nepal. The name applied to the species is not appropriate, as many individuals have 

 the upper parts more or less yellowish-brown. The types are in the British Museum. 

 The smallest is pale brownish- grey on all the upper parts and taU, and the para- 

 chute is dark rich brown on its outer half. The fur is soft, dense and moderately 

 long, slaty grey at its base, then narrowly brown, followed by a pale-yellow band 

 which is generally terminal, but in some the hairs are tipped with brown. Cheek- 

 bristles are present, but feeble. The tail presents no banding, and is pale dusky 

 yellowish-brown, and in some specimens, it is more biishy than in others, and in this 

 respect more resembles the tail of P. fimbriatus. The teeth both in this species and 

 in P. fimbriatus are bright orange-red, and the molars are tuberculated, but not more 

 so than in P. magnificus, P. caniceps, and P. leucogenys. 



In the young, the base of the fur is nearly black, and the dark area around the 

 eye is very well defined. The tail is nearly black and more distichous than in the 

 adult. 



Inclies. Inches. 



The length of body 8-30 ( ^ J to 8-85 ( ? ). 



tail 6-80 (^) to 6-90 ($). 



This species has been found in Nepal, Sikkim, Bhutan, Assam, Sylhet, Burma, 

 Western Yunnan, and Cambodja. 



Pteeomts ph^omelas, Giinther. 



Pteromys pJiaomelas, Giinther, Proe. Zool. Soc. Lond. 1873, p. 413. 



This species is from Borneo. It is a small, brownish-black, flying squuTel with 

 a very glossy back. The hairs on the hinder half of the back have a narrow, sub- 



' There is a small flying squirrel in the British Museum which I have not been able to identify. It is 

 from the Laos Mountains (Mouhot), and appears to be closely allied to P. alhoniger. It is pale greyish-brown 

 above, darker on the limbs and parachute which are grizzled, the feet being nearly white. The tail at its base is 

 nearly the same colour as the back, but the remainder is as dark as the limbs, but ungrizzled, passing nearly into 

 black ; its under surface being greyish-brown. The under parts of the body are thickly clad with yellowish-wbite 

 fur. The length of the body is 7 inches and the tail without the hair 5 inches. There are two small cheek -bristles, 

 and the hind feet are whitish. The ears are smaller than those of P. alhoniger, and the hinder margin is not 

 Bo rounded. This is probably the flying squirrel referred by Gray to P. momonga,—Yiie Proe. Zool. Soc. 1861, 



