164 FAUNA AMERICANA, 



« Wish-ton-wish,'' which they pronounce with a 

 sharp voice, in order to mimic the voice of the 

 animal. 



Inhabit North America, abounding in the Misr 

 souri country. 



Species. 



4. Arctomys tridecemlineata. 



Sciuriis tridecemhneatus, Mitchill, Medical Re- 

 pository, No. 2. vol. vi. January, 1821. 



Arctomys hoodii, Sabine, Trans. Lin. Soc. vol. 

 xiii. p. 590. 1822. 



Striped and spotted Grotmd-sqiiirrel^ Say, 

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

 p. 174. 



This beautiful little animal has been improperly 

 placed under the genus Sciuriis, from which it is 

 essentially different, and corresponds with the 

 genus Jlrctomys in the following particulars. 1. 

 In the form and appearance of the whole body in 

 general ; 2. in the form of the head and ears ; 3. 

 in the length, direction, and form of the tail ; 4. in 

 the form and proportion of the legs; 5. in the 

 form and length of the nails ; and, 6. in some of 

 its manners and habits. In justice to Mr. Desma- 

 rest, we must remark that he has expressed some 

 doubts of the propriety of arranging it under the 

 division in which he had placed it, but not having 

 seen the animal, he was unable to say which genu's 

 it most resembles. 



