June, igoo. New Species of Mountain Goat — Elliot. 5 



are as follows: The steeper descent and great depression of the 

 frontals anterior to the horn cores; the flatter nasals; comparatively 

 narrower malar and its acute termination, the wider lacrymal, the 

 straight anterior outline of the interparietal, the square-shaped later- 

 ally contracted basisphenoid, the pointed character of the narrow pre- 

 sphenoid and the wide pterygoid fossa and palate. The mandible 

 differs in the more prominent projecting angle and the straighter 

 inferior outline of the horizontal portion. 



The horns in their shape and set are entirely different from the 

 eastern species, not turning backward until near the tips, but curving 

 outward from the base. The length is nearly equal the longest on 

 record of the Rocky Mountain animal, while the width at tips is nearly 

 twice that ever given. 



