PATAGONIAN EXPEDITIONS : PALEONTOLOGY. 



EXPLANATION OF PLATE LVI. 



Fig. I. EucHOLOEOPS EXTERNUS, type: Skull, right side, X i/i. Ameghino 

 collection .......... 



Fig. 2. EucHOLCEOPS FRONTO : Palate X 6/7 ; type of E, lafonei Mercerat 

 La Plata Museum ........ 



Fig. 3. EucHOLGEOPS FRONTO : Mandible, right side, X i/i. Amer. Mus 



Nat. Hist. (No. 9,575). . 



Fig. 3^. '' '' Mandible, crown view, X i/i. 



Fig. 4. '' '' Mandible, ventral view, X i/i (No. 15,314) 



Fig. 4^. '' '' '' crown view, X i/i. 



All figures, except Fig. 2, natural size. 



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