PATAGONIAN EXPEDITIONS : PALEONTOLOGY. 



EXPLANATION OF PLATE LIV. 



PAGE 



Fig. I . H YPERLEPTUS GARZONiANus, type : Skull, right side ; Ameghino col- 

 lection ..... 262 

 Fig, la, '' '' '' Palate. 



Fig. 2. ? Hapalops ponderosus, type: Skull, left side (No. 15,520) . . 236 



Fig. 2a. '' '' '' Palate. 



All figures natural size. 



(vol. v"! 



