172 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



Genus PLAGIODONTIA F. Cuvier. 



1836. Plaglodontia F. Clavier, Ann. sci. nat., 'Jd ser., ri 

 p. 347. Type. — PJa;/ioi:lont!ii aediurn F. Cuvier. 



* Flagiodontia aedium F. Cuvier. 



iSoG. Pla(/iodontia oedium F. Cuvier, Ann. sci. nat., 2d 



ser., VI, p. 347. 

 1885. Plagiodontia aedium True, Proc. U. S. nat. mus., vii 



(1884), p. 600. 1885. 

 Type locality. — San Dorainffo. 



P\amilv ERETHIZONTIDAE 



Subfamilv Erethizoxtinae. 



Genus ERETHIZON F. Cuvier. 



1822. Erethizon F. Cuvier, Mem. mus. d' hist, nat., Paris, ix, 

 p. 426. Type. — Hystrix dorsata Lixnaeus. 



* Erethizon dorsatum (Linnaeus). 



1758. [Hijstrix'\ dorsaUi Lixxaeus, Syst. nat., x ed., i, p. 57. 

 1822. E\j'bthizon'\ dorsatum Y . Cuvier, Mem. mus. d' hist. 



nat., Paris, ix, p. 432. 

 1885. Erethizon dorsatus dorsatus True, Proc. U. S. nat. 



mus,, Yii (1884), p. 600. 1885. 

 Type locality. — Eastern Canada. 



Erethizon dorsatum picinum Bangs. 



1900. Erethizon dorsatus j^icinus Baxgs, Proc. New Eng- 

 land zool. chib, II, p. 37. September 20, 1900. 

 Type locality. — Lance an Loup, Strait of Belle Isle, Lab- 

 rador. 



