PATAGONIAN EXPEDITIONS: PAL/EONTOLOGY. 



EXPLANATION OF PLATE LII. 



PAGE 



Fig. i. PELECYODON CRISTATUS : Skull, base (No. 15,627) .... 309 



Fig. i a. " " " top view. 



Fig. ib. " " Occiput. 



Fig. \c. " " Skull, right side. 



Fig. 2. " " " base (No. 15,049). 



Fig. 2. " " " left side. 



Fig. zb. " " " top view. 



All figures natural size. 



(VOL. v) 



