68 Two new species of Flying Squirrel. [No. 145. 



the same hue, which also spreads over the shoulders and thighs. Below, 

 and the flying membrane with the lower limbs and tail, intense orange 

 red, deepening into ochreous on the margin of the membrane, and 

 on the limbs ophthalmic and mystacial regions defined by black ; chin 

 dark, cheeks mixed, a pale golden spot on the nasal bridge. Two 

 inches of end of tail black. Ears outside concolorous with lower sur- 

 face. Tail longer than the animal and cylindric. Pelage thick and 

 soft, and glossy, woolly and hairy piles : average length of latter an inch 

 and one-third. Snout to rump fifteen inches. Head to occiput 

 (straight) three inches and three-eighths ; tail, seventeen inches and a 

 half ; less terminal hair, fifteen inches and a half, ears one inch and one- 

 third. Palma, less nails, one inch and seven-eighths. Planta, less nails, 

 two inches and seven-eighths. Habitat, hills generally, but chiefly the 

 central and northern regions. Sexes alike. Remark. — In colour much 

 like Magnificus, but invariably distinguished by the pale golden line 

 down the spine. 



2. Sp. new. Senex, nob. General structure as above, but size 

 smaller, and fur longer. Entire head, pepper and salt mixture, or iron 

 grey: orbits and base of ears behind, intense burnt sienna. Entire 

 body above and the tail and flying membrane, a full clear mixture of 

 golden and black hues ; shoulders not paled. Limbs intense aurantine 

 ochreous. Margin of the parachute albescent, and neck below the same. 

 Body below with parachute there, orange red. Tip of tail black as 

 usual. Ears nearly or quite nude and tail subdistichous or flatter. 

 Pelage longer and scarcely so fine as in Magnificus and in Chrysotrix. 

 Longest piles an inch and three-quarters, and less glossy. Snout to 

 rump fourteen inches, head two inches and seven-eighths, ears one 

 inch and a quarter. Tail only fifteen inches, with hair sixteen inches 

 and a half. Palma one inch and eleven-sixteenths. Planta two inches 

 and a half. 



Habitat as before. 



Remark.— -Differs from the two larger species of these hills, and ap- 

 proaches to the least, or Alboniger, by the less cylindric form of the tail 

 and under-ears. Its pelage is coarser and less glossy than in any of 

 the other three, but is fully as warm and thick. 



July, 1842. 



