1020 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XX. 



(9) Petaurista nobilis, Gray. 



1842. Pteromys nobilis, Gray, A. M. N. H., X., p. 263. 



1844. Pteromys chrysothrix., Hodgson. J. A. S. B., XIII, 

 p. 67. 



Synonymy. — Hodgson's chrysothrix from Nepal was published 

 at the same time as senex and Gray's nobilis from Sikkim at the 

 same time as caniceps ; Gray's name therefore stands for the 

 species. 



Description. — Size rather larger than inornatus and caniceps. Fur 

 of back 35-40 mm. long. Back above from between the ears 

 to root of tail bay (sometimes stopping somewhat sooner when 

 the rump is coloured like the parachute) with a bright buff median 

 line. The parachute bright buff darkening outwards to orange 

 rufous ; below entirely pinkish buff. Face like back but the fore- 

 head much tinged with buff. Hands and feet and tail ochraceous 

 rufous, the last with a black tip. 



Size. — Hodgson records the following dimensions for his 

 chrysothrix : — Head and body, 375 ; tail, 380 ; hindfoot, 73. Skull, 

 greatest length, 72; basilar length, 57; greatest breadth, 49; 

 molars, 17. 



Remarks. — There can be no doubt that this species is quite 

 distinct from albiventer. It appears to be the high level represen- 

 tative of albiventer and not a seasonal phase of that species. A 

 variation in the distinctness of the dorsal stripe is probably 

 seasonal but even where the stripe is practically absent their size 

 separates the two forms. 



(10) Petauristaj albiventer, Gray. 



1834. Pteromys albiventer, Gray. III., Ind., Zool. II, pi. 18. 



1836. Sciuropterus magnificus, Hodg., J. A. S. B., V., p. 231. 



Synonymy. — Pt. albiventer was published as a plate figure with- 

 out letterpress, describing it in 1837 (A. M. N. H., 1, p. 584). 

 Gray gave the type localit} 7 as Nepal from whence also Hodgson's 

 magnificus was described. 



Desertion. — Size larger than nobilis. Fur of back 40 mm. 

 long. General colour above bay grizzled with white on the back, 

 buff on the shoulders, and orange rufous in the parachute ; below 





