PATAGONIAN EXPEDITIONS I PALAEONTOLOGY. 



EXPLANATION OF PLATE LIV. 



PAGE 



Fig. i . HYPERLEPTUS GARZONIANUS, type : Skull, right side ; Ameghino col- 

 lection ..... 262 

 Fig. i a. " " " Palate. 



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



Fig. 2a. " " " Palate. 



All figures natural size. 



(VOL. v) 



