PATAGONIAN EXPEDITIONS: ZOOLOGY. 



EXPLANATION OF PLATE XIL 



Akodon, six species, and Piiyllotis micropus. 



PAGE 



Fig. i-i^. Akodon xanthorhinus : Upper and lower teeth, greatly worn, 

 cf ad., Xf Skull figured on Plate XI, Fig. \-ib. No. 13, 

 Colburn Collection 71 



Ficr. 2-2a. Akodon xanthorhinus : Upper and lower teeth, of a young 

 specimen with unworn teeth, for comparison with Fig. i-\a. 

 Punta Arenas, Patagonia. No. 7, Colburn Collection. 



Fig- ^-?)^- Akodon canescens : Upper and lower teeth, greatly worn, c? 



ad., X f Skull figured on Plate XI, Fig. 2-2<^ ... T2> 



Fig. 4-4«. Akodon canescens : Upper and lower teeth, J* juv., with unworn 

 teeth, for comparison with Fig. Ti'Z'^- ^louth of Rio Gal- 

 legos, Patagonia. U. S. Nat. Mus. No. 92,192. 



Fig. 5-5«. Akodon caliginosus : Upper and lower teeth, greatly worn, 9 

 ad., X A Skull figured on Plate XI. Fig. i-2>l>. 



Fig. 6-6a. Akodon caliginosus : Upper and lower teeth, unworn, 9 juv., 

 for comparison with Fig. 5-5^. Inca Mines, Peru. Am. 

 Mus. No. 16,055. 



Fig. 7-70;. Akodon pulcherrimus : Upper and lower teeth, greatly worn, 

 (^ ad., X f. Skull figured on Plate XI, Fig. 4-4^. 



Fig. 8-8«. Akodon pulcherrimus: Upper and lower teeth, unworn, for 

 comparison with Fig. 7-7^, cT juv., X f . Inca Mines, Peru. 

 Am. Mus. No. 16,510. 



Fig. 9-9<z. Akodon suffusus: Upper and lower teeth, greatly worn, c? ad., 



X f . Skull figured on Plate XI, Fig. 5-5^ .... 76 



Fig. lo-ioa. Akodon suffusus: Upper and lower teeth, very slightly 

 worn, for comparison with Fig. 9-9^', J' juv., X \. Upper 

 Rio Chico, Patagonia. U. S. Nat. Mus. No. 84,322. 



Fig. \i-\\a. Akodon vestitus : Upper and lower teeth, greatly worn, 9 



ad., X f Skull figured on Plate XI, Fig. 6-6b ... 78 



Fig. \2-12a. Akodon vestitus: Upper and lower teeth, slightly worn, 9 

 juv., for comparison with Fig. ii-iirt, X f . Upper Rio 

 Chico, Cordilleras, Patagonia. U. S. Nat. Mus. No. 84,235. 



Fig. 13-13^'. Phvllotis micropus: Skull (Xf)and upper and lower teeth 

 (X f), J' ad., with the teeth greatly worn. Upper Rio Chico, 

 Cordilleras, Patagonia. U. S. Nat. Mus. No. 84,338. . 60 



(vol. hi) 



