182 FAUNA AMERICANA. 



appearance of" a vertebral line ; thigh, neck, antt 

 rior to the commencement of the white line, and 

 top of the head, tinged with ferruginous ; orbit 

 whitish ; tail short, thin, with a submarginal black 

 line beneath ; nails of the anterior feet elongated j 

 thumb tubercle furnished with a broad nail ; sides 

 dull yellowish-white ; beneath pale, intermixed 

 with blackish. (Say.) 



Inhabit about the base of the Rocky Moun- 

 tains, where they were first observed by Lewis 

 and Clark, on their expedition to the Pacific 

 Ocean. A specimen in the Philadelphia Muse- 

 um, brought by the exj^loring party under Maj. 

 Long. 



Species. 



8. Sciurus grammurus, lined tail squirrel^ Say, 

 Long's Exped. to the Rocky Mountains, v. ii. 

 p. 72. 



Char. Essent. Body cinereus ; fur very coarse : 

 three black lines on each side of the tail. 



Dimensions. Length to the origin of the tail 

 eleven inches ; of the tail nine inches. 



Description. Body cinereus, more or less tinged 

 with ferruginous : fur very coarse, much flattened, 

 canaliculate above, plumbeous or blackish at base, 

 then whitish or ferruginous, tip brownish ; above 

 the neck and shoulders the whitish is prevalent ; 

 from the middle of the back, the sides, and the 

 pxtorior surface of the legs, the ferruginous colour 



