PATAGONIAN EXPEDITIONS: ZOOLOGY. 



EXPLANATION OF PLATE X. 



OxYMYCTERUs, Eligmodontia, and Oryzomys. 



PAGE 



Fig. \-id. OxYMYCTERUS APiCALis : Type skull, 9 ad.; skull, Xf ; teeth, 

 X f ; teeth greatly worn. Inca Mines, Peru. Am. Mus. No. 

 1 6,064. 



Fig. 2-2a. Eligmodontia morgan: : Upper and lower teeth of cf ad., X \ ; 

 teeth much worn. Skull figured on Plate IX, Fig. i-ib. 

 Rio Coy, Patagonia. U. S. Nat. Mus. No. 92,218 . . 53 



Fig. Z~2>^- Eligmodontia morgani : Upper and lower teeth of 9 juv., with 

 unworn teeth, for comparison with Fig. i. Rio Coy, Pata- 

 gonia. U. S. Nat. Mus. No. 92,226. 



Fig. 4-4^. Oryzomys magellanicus : ^ ad.; upper and teeth, much worn, 

 Xf U. S. Nat. Mus. No. 84,275. Skull shown in Plate IX, 

 Fig. 2-2b 47 



Fig. 5-5«. Oryzomys magellanicus: 9 juv.; upper and lower teeth, un- 

 worn, X f . Upper Rio Chico, Cordilleras, Patagonia. U. S. 

 Nat. Mus. No. 84,263. 



Fig. 6-6a. OxYMYCTERUS lanosus : Upper and lower teeth, 9 adx f . Skull 



figured on Plate IX, Fig. 3-3*5 83 



Fig. 7-7«. OxYMYCTERUS microtis : Type, upper and lower teeth, c? ad., 



X f . Skull figured on Plate IX, Fig. 4-4*5 .... 84 



Fig. 8-8«. OxYMYCTERUS inca : Type, upper and lower teeth, J* ad. ; teeth 

 very much worn, X f . Skull figured on Plate IX, Fig. 5-5(5. 



Fig. 9-9^. OxYMYCTERUS juLiAC-E : Type, upper and lower teeth, much 

 worn, c? ad., X f . Skull figured on Plate IX, Fig. 6-6^. 



Fig. io-io«. OxYMYCTERUS APICALIS: Upper and lower teeth, unworn, for 

 comparison with worn teeth. Fig. ic-\d of this Plate. 9 

 juv., X|. Inca Mines, Peru. Am. Mus. No. 16,067. 



(vol. hi) 



