PATAGONIAK EXPEDITIONS: ZOOLOGY. 



EXPLANATION OF PLATE IV. 



PAGE 



HippocAMELUS Bisuirrs : Skull. J* ad., X i^. Upper Rio Chico, eastern 



base of Cordilleras, Patagonia. U. S. Nat. Mus. No. 93,399 . . 1 1 



(vol. hi) 



