BOS. 123 



«^- Horns present in both sexes, but often markedly smaller in 

 the ^ females, set with their bases close to one another ; the 

 occipital and frontal planes form an acute angle. 



b. Horns wrinkled and forming circles ; no mufHe ; small feet 

 pits on all four feet ; antorbital pits present (except O. 

 nahoor) ; basioccipital oblong with the posterior tubercles 

 larger (except O. nahoor) ; four mammae. Ovis, p. 131. 



P. Horns smooth and angular ; no muffle ; no antorbital pits ; 

 feet-pits if present, only on the fore-feet ; basioccipital wider 

 in front, and the anterior tubercles larger ; two mammse 

 (except C. jemlaica.) .... Capra, p. 142. 



b^. Horns rounded and small ; a small muffle present ; antorbital 

 pits present ; feet-pits large ; four mammse. 



Nemorhaedus, p. 147. 



a'. Horns not always present in the females, placed on the crest 

 of the frontals but generally some way apart at their bases ; 

 the frontal and occipital planes hardly form an angle but a 

 rounded surface ; generally four mammse ; antorbital pits 

 always present. 



c. Horns smooth, in males only ; muffle present ; mammje 

 four in number. 



d. Of large size ; horns short recurved ; a short erect mane, 

 and a throat tuft in the male. . Boselaphus, p. 154. 



<f2. Of small size ; horns four in number ; canines present 

 in the males. . . . Tetracerus, p. 168, 



£^. Horns ringed ; no muffle ; mammse two in number. 



e. Horns straight, long, annulate d, in males only; no 

 muffle ; no canines. . . Antilope, p. 162. 



e^. Horns ringed, generally lyrate ; if present in female, 

 small. I 



f. An intermaxillary pouch present ; no horns in 

 females ; no knee tufts. . Pantholops, p. 163. 



ys. No intermaxillary pouch; females often horned; 

 knee tufts generally present. Gazella, p. 1^7- 



e*. Horns gnu-like, spinging close together; muzzle bovine, 

 no antorbital pits or feet-pits. . Budorcas, p. 151. 



Genus BOS. 



Bos LinncBus Syst. Nat., 12th ed., i, p. 98 (1766). 

 Bison, H. Smith Griffith An. Kingd., v, p. 373 (1S27). 



