180 MURIM2. MTODES. 



Arvicola subterraneus. 



Blasius, Faun. Wirb. Deutscbl. p. 388. figs. 215, 216 (dentition), 1857. 

 *a. Skull. Var. b. A. pyrenaicus. Pyrenees. 



Arvicola cinnamoneus. 



Baird, Mamm. N. America, p. 541. pi. 54. no. 1714 (teeth), 1859. 



The Oregon Ground Mouse. Arvicola townsendii. 

 Baird, Mamm. N. America, p. 527. pi. 54. no. 1595 (teeth), 1859. 



The Prairie Meadow Mouse. Arvicola austerus. 



Leconte, Proc. Acad. Nat. Sc. Philad. vi. p. 405, 1854.— Baird, Mamm. 

 N. America, p. 539. pi. 54. no. 1587 (teeth), 1859. 



The Upland Mouse. Arvicola pinetorum. 

 Baird, Mamm. N. America, p. 544. pi. 54. no. 1719 (teeth). 

 a. Skull. From the Zoological Society's Collection. 



The Red-backed Mouse. Arvicola gapperii. 



Vigors, Zool. Journ. v. p. 204. tab. 9 (teeth). — Baird, Mamm. N. 

 America, p. 518. 



The Awinnak or Northern Meadow Mouse. Arvicola borealis. 



Brachyurus blumenbachii, Fischer, Prod. Cram Comp. pl.2. fig. 2(skull), 

 1811. 



ELLOBIUS. 



Teeth : — Incisors 



The Talpine Rat. Ellobius talpinus. 



Brandt, Mem. Acad. St. Petersb. vii. pi. 5. figs. 1-6 (skull). 

 Chthonoergus talpinus, Nordmann, Voy. DemidofF, iii. 

 Spalax talpinus, Fischer, Syn. Mamm. p. 302. 

 Lemmus talpinus, Griffith, Anim. Kingd. v. 555. 4. 



*a Skull. Ural. 1 F M Brandt's Collection. 

 *6. Skull. j 



MYODES. 



Teeth 



Myodes obensis. 



Brants, Muiz. m.—Middendorff, Bull. Acad. St. Petersb. 1844. 



a. Skull. Russia. } „ , , v , T T , ,, 

 7 oi n c-i. • r Purchased of Mr. Lrandt 

 h. Skull. Siberia 



