306 Monograph of the Genus ISciurus. 



color. In a few specimens there is an obscure line of lighter 

 brown along the sides, where the ochreons color prevails, and a 

 tinge of the same color on the upper surface of the fore legs above 

 the knees. The feet are light grey ; the tail, for three fourths of 

 its length from the root is yellowish brown, then black edged 

 with white ; the throat, inner surface of the legs and the belly, 

 white. 



This species is common in South Carolina, Alabama, Florida, 

 &c. and is probably not rare as far north as Philadelphia. 



In habits this species differs much from the S. leucotis. Its 

 bark is less full, and much shriller and more querulous. Its usual 

 haunts are in low swampy places, and among the trees overhang- 

 ing rivers. It is very active even after dusk, and in moonlit 

 evenings. The young are commonly five or six in number and 

 brought forth in March. 



9. Species nigrescens. Bennett. Dusky Squirrel. 



DIMENSIONS. 



Length from point of nose to root of tail, 

 Ditto of tail to end of hair, _ - _ 



Tarsus, claws included, _ _ _ _ 



Nose to ear, - - -. - 



Height of ear posteriorly, - - - 



Prevailing color 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, in- 

 cluding the interior of the legs, dingy grey. Ears well clothed 

 with hairs ; hind part dingy grey, fore part the color of the back ; 

 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. • 

 Numerous strong black hairs interspersed over the body. 



Described from the original specimen in the Museimi of Zoo- 

 logical Society : No. 429 in the Catalogue. 



