Zoological Society. 277 



The tail is broad and nearly as long as that of the last-named spe- 

 cies. 



The colour of the whole upper surface is gray, with a distinct 

 yellow tint. The hairs, which give this outward appearance, are 

 grayish slate colour at their base, then very broadly annulated with 

 yellow ; then black, and near the apex annulated with yellowish 

 white. The sides of the face and neck, the whole of the inner side 

 of the limbs, feet, and the whole of the under parts, of a deep golden 

 yellow ; on the cheeks and sides of the neck, however, the hairs are 

 obscurely annulated with black and whitish ; the ears are well 

 clothed on both surfaces with tolerably long hairs of the same deep 

 golden hue as the sides of the face ; hairs of the feet are mostly 

 blackish at the root, and some are obscurely tipped with black ; 

 hairs of the tail black at the roots, and the remaining portion of a 

 bright rusty yellow ; each hair three times in its length annulated 

 with black ; the under surface of the tail is chiefly bright rusty yel- 

 low ; whiskers longer than the head, black. 



Sciurus magnicaudatus, Harlan's Fauna, p. 170. S. macrourus. Say. 

 Long's Expedition, vol. i. p. 115. 



Of this species Dr. Bachman remarks, that although he has seen 

 many specimens labelled under the above name, yet the only true 

 -S^. macrourus which has come under his own observation, is one in the 

 Philadelphia Museum. 



Sciurus aureogaster, F. Cuv. et Geoff. Mamm. Californian Squirrel. 

 Habitat Mexico and California. 



Sciurus cinereus. Gmel. Cat Squirrel, Pen. Arct. Zool. i. 137. 



A little smaller than the Fox Squirrel ; larger than the Northern 

 Gray Squirrel ; body stput ; legs rather short ; nose and ears not 

 white; tail longer than the body. Dental formula, incis.^, can. ^, 



mol. -^^, =20. 



** This squirrel has many habits in common with other species, 

 residing in the hollows of trees, building in summer its nest of 

 leaves in some convenient crutch, and subsisting on the same va- 

 riety of food. It is, however, the most inactive of all our known 

 species. It mounts a tree, not with the lightness and agility of the 

 Northern Gray Squirrel, but with the slowness and apparent reluc- 

 tance of the little Striped Squirrel (Tamias Lysteri). After ascend- 

 ing, it does not mount to the top, as is the case with other species, 

 but clings to the body of the tree on the side opposite to you, or 

 tries to conceal itself behind the first convenient limb. I have never 

 observed it escaping from branch to branch. When it is induced in 



