MURIDiE— ARVICOLIN2E— CUNICDLUS. 



243 



the first and only American specimens handled in this country since the time 

 of Richardson. 



Table LX.— Measurements of thirty-two specimens (dry, except 8398-9) of Myodes obensis. 



•At mouth of Porcupine River. 



Genus CUNICULUS, Wagler. 



Mus sp., AUCT. antiq. 



Arvicola sp., Myodes sp., Lemmus sp., Auct. recentior. 



Georyclius, partim, Richardson; Aud. & Bach, nee Illig. 



Cuniculus, Wagler (" Syst. 1830 "), Isis, 1832, 1220. (Type, C. grcenlandicus = C. torquatus.)— Lilljeborg, 



Syst. Ofvers. Gnag. Daggdj., Glires, 18G6, 23 (same type).— Coues, Proc. Acad. Nat. Sei. Phila. 



1874, 195. 

 Misothermus, Hensel, Zeits. Deutsch. Geol. Ges. vii, 1855, 492 (same type). 



Chars. — Skull lower, broader, more massive than in Arvicola, rather less 

 go than in Myodes (zygomatic width not i the length), but in general char- 



