XXVII. 



Canada Porcupine, Gray Porcupine, Quill-pig, 



or Urson. 



Erethizon dorsatum (Linnaeus). 



(Gr. Erethizon ppr. of erethizein, to excite or irritate; L. dorsatus, from dorsum, the 

 back, in allusion to its formidable 'backing' or 'back armour.') 



Hystrix dorsata LiNN., 1758, Syst. Nat. X ed. I, p. 57. 

 Erethizon dorsatum F. CuviER, 1822, Mem. Mus. d'hist. Nat., 

 Paris, IX, p. 432. 



Type Locality. — Eastern Canada. 



French Canadian, FUrson, le Pore-epic velu. 



Cree, Kahk. Richardson gives it Caiiquaw. 



Saut. and Muskego, Kagh. 



OjIB., 0-ga'. 



Chipewyan, Thee. 



Yankton Sioux, Pah-hee. 



Ogallala Sioux, Pah-hin'. 



The Porcupine Family, or ErethizontidcB, is sufficiently 

 characterized in the generic description. 



The genus Erethizon (F. Cuvier, 1822) comprises thick- 

 set, short-faced, large Rodents. They have the lips all hairy, 

 head and body covered on hack and sides with lojig, sharp 

 spines; tail, short, thick, spiny above; short ears; 4 toes on 

 fore-feet, 5 on hind-feet; 4 mammae, all pectoral. The teeth 

 are: 



Inc. ; prem. ; mol. = 20 



i-i i-i ?>-i 



To these generic characters the Canada Porcupine adds size 

 the following: 



Length, about 36 inches (914 mm.); tail, 6 inches (153 

 mm.); hind-foot, 3 J inches (39 mm.). 



G05 



