ERETHIZON 103 



Octodon degus. 



Sc'mrns degus, Molina Sag. Star. Nat. CkiU, pp. 303, 34a {l^i2)* j Gmelm 



Syst. Nat., i, p. 152. 

 Octodon cammingii, Bennett, P. Z. S., p. 4j (1832); id. Trans. Zool. Soc, 



ii, p. 81, pi. xvi. 

 Octodon pallidus, Wagner Archiv.f. Nafur., %\, pt. a, p. 33 1(11845). 

 Dendrc^ius degus, Meyen Nova Acta Acad. teot. Caro., xvi, p. 600, p}. 



xliv (1833). 

 Octodon degus, Waierkouse Nat. Hist, Sfamm., ii, p. 253 (1848); Blytk 



Cat. no. 419, p. 127. 



a. Stuffed Chili C. T. Eyton (1846), A. S. B. 



Genus SYNETHERES. 



Synetheres, ff. Cttvier Mem. Mus., Paris ix, p. 433 (4822). Ty^e, S. prf- 



hensilis. 

 Cercolabes, Brandt Mamm. Exot. Nov-, p. S$ (1835). 



Synetheres prehensilis. 



Hystrix prehensilis, Linntsus Syst. Nat., 12th ed., i, p. 76 (1766). 



Hystrix cuandu, Desmarest Mamm., p. 346 (1820). 



Synetheres prehensilis, F. Cuvier Mem. Mus., Paris, ix, pp. 427, 433, 



pi. XX ter, figs. 3 and 4 (1822). 

 Cercolabes prehensilis, Brandt Mamm. Exot. Nam., p. 60, pi. ix, figs. 5-9 



(183s) ; Watirhoiise Nai. Hist. Mamm.i ii, p. 410. 



Dislribwtion — The Brazilian region of South America. 

 «. Ale. 9 Purchased. 



Genus ERETHIZON. 



Erethizon, F. Cuvier Mem. Mus., Paris, ix, p. 432 (1822). Type, E. 



dorsatus. 

 JEchinopiocta, Gray P. Z. S., p. 321 .(1865). Tyfie, E. rufescens. 



Erethizon dorsatus. 



Hystrix dorsata, Livnceus Syst. Nat., lath ed., i, p. 76 (1766)'. 



Erethizon dorsatus, F. Cuvier Mem. Mus., Paris, ix, p. 42S1 pi. xx ter, figs. 



I, 2 & 8 (1822) ; Allen Monographs N. Amer. Rodents, p. 388 

 Hystrix hudsonius, Dekay New York Zool., i, p. 77, pi. xxvi, fig. i, pi. viii, 



fig. 2 (1842). 



The Canada Porcupine, 



Distribfilion, — Middle and northerly portions of the North 

 American Continent. 



a-b. 2 Skulls Vpton, Maine, U. S, A. W. Theobald. 



