PATAGONIAN EXPEDITIONS I PALEONTOLOGY. 



EXPLANATION OF PLATE LVI. 



PAGE 



Fig. i . EUCHOLCEOPS EXTERNUS, type : Skull, right side, X i / 1 . Ameghino 



collection ........... 269 



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



La Plata Museum . . . . . . . . . 271 



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



Nat. Hist. (No. 9,575) 272 



Fig. Z a - " " 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. 



(VOL. v) 



