334 MONOGRAPH OF THE GENUS SCIURUS. 



9. Dusky Squirrel. Sciurus nigrescens, Bennett. 



DIMENSIONS. IN. LIN. 



Length from point of nose to root of tail 12 4 



Ditto of tail to end of hair 15 4 



Tarsus, claws included 2 1\ 



Nose to ear 2 2\ 



Height of ear posteriorly „ 8i 



Colour. — Prevailing colour black, slightly grizzled on the 

 body, crown of the head, and legs, with grey; sides of the neck, 

 groins, upper parts of the thighs and rump, grizzled with pale 

 yellow; cheeks, chin, throat, neck, breast, and the whole of the 

 under surface, including the interior of the legs, dingy grey. 

 Ears well clothed with hairs ; hind part dingy grey, fore part 

 the colour of the back ; the hairs of the hinder parts of thighs 

 black. Tail, hairs black at the roots, then grey, then a broad 

 band of black, and broadly tipt with white. Feet black ; the 

 hairs of the toes grizzled with white points. Whiskers about 

 the length of the head, black. Hairs on the back plumbeous 

 black at the roots, for two thirds of their length, then grey, then 

 black, and tipt with whitish grey. There are numerous strong 

 black hairs interspersed over the body. 



Described from the original specimen in the Museum of the 

 Zoological Society ; No. 429 in the catalogue. 



10. Collie's Squirrel. Sciurus Collicei, Richardson. 1 



DIMENSIONS. IN. LIN. 



Length from nose to root of tail 10 9 



Ditto of tail to end of hair 9 6 



Tarsus, including nail 2 5 



Height of ear posteriorly „ 6 



Nose to ear 2 



Colour. —Above, grizzled black and buff yellow ; sides of 

 muzzle, under parts, and inner sides of limbs white. Tail 

 moderate, the hairs greyish white, three times annulated with 

 black. Hairs of the body, both above and beneath, grey at 

 the root; that of the back with a lengthened black tip, and 

 broadly annulated with buff yellow. The hairs of the head 

 resemble those of the back, except on the fore part, where 

 they are annulated with whitish. Top of the muzzle brown, 

 cheeks greyish. Ears well clothed with hairs, which are in- 

 ternally of a yellowish colour, externally grizzled with black 

 and yellow on the fore part, but posteriorly with long whitish 

 hairs. Hairs of feet white, black at the root ; the whiskers 

 are as long as the head, composed of bristly black hairs. 



Described from the original specimen, deposited by Dr. 

 Richardson in the Museum of the Zoological Society. 



1 Appendix to Captain Beechey's Voyage. 



