32 Merriam Two New Bighorns and a New Antelope. 



hairs on the nape; a median dorsal dark streak usually present on neck, 

 sometimes reaching posteriorly to shoulders; head markings more sharply 

 denned; occiput distinctly white or whitish, clearly denned posteriorly, 

 and divided by a median dark stripe. 



Cranial characters. Skull similar to that of americana but orbits less 

 abruptly protruding antero-inferiorly; premaxillae more slender, especial 

 ly posteriorly; bullse thinner; lips of posterior nares longer (facial part 

 of skull set farther forward). 



Measurements. Total length 1420; tail vertebrae 145; hind foot 410; 

 height at shoulders 830. 



