ERETHIZON 103 



Octodon degus. 



Scmrus degus, Molina Sag. Stor. Nat. Chili, pp. 303, 342 (1782)* ; Gtnelin 



Syst. Nat., i, p. 152. 

 Octodon cumva\ng\\, Bennett, P.Z. S., p. 47 (1832) ; id. Trans. Zool. Soc, 



ii, p. 81, pi. xvi. 

 Octodon pallidus, Wagner Arckiv.f. Nalur , xi, pt. 2, p. 33 (1845), 

 Dendrobius degus, M'cyen Nova Acta Acad. Leof). Caro., xvi, p. 600, pK 



xliv (1833). 

 Octodon degus, Water kou^e Nat, Hist. Mamm., ii, p. 253 (1848); Blytk 



Cat. no. 419, p. 127. 



Disiribuiior.. — Chili. 

 «. Stuffed ChiH C. T. Eyton (1846), A. S. B, 



Genus SYNETHERES. 



Synetheres, F. Cuvier Mem. Mus., Paris ix, p. 433 (1822). Typ^, S. pre- 



hensilis. 

 Cercolabes, Brandt Mamm. Exot. Nov., p. 55 (1835). 



Synetheres prehensilis. 



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



Hystrix cuaudu, Desniarest Manini., 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. Nov , p. 60, pi. ix, figs. 5-9 



(183s) ; Waterhotise Nat. Hist. Mamm., ii, p. 410. 



Distribution — The Brazilian region of South America. 

 a. Ale. ? . Purchased. 



Genus ERETHIZON, 



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



dorsatus. 

 Echinoprocta, Gray P. Z. S., p. 321 (1865). Type, E. rufescens, 



Erethizon dorsatus. 



Hystrix dorsata, Linncsus Syst. Nat., 12th ed., i, p. 76 (1766). 



Erethizon dorsatus, F. Cuvier Mem. Mus., Paris, ix, p. 425, 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. ' 



Distribution. — Middle and northerly portions of the North 

 American Continent. 



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



