BOS. 



123 



a^. 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 muffle ; 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. 



V^. 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 mammje 

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



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

 pits present ; feet-pits large ; four mamm©. 



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 mammae ; antorbital pits 

 always present. 



c. Horns smooth, in males only ; mufHe present ; mammis 

 four in number. 



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

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



d^. Of small size ; horns four in number ; canines present 

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



c^. Horns ringed ; no muffle ; mammos two in number. 



e. Horns straight, long, annulated, in males only ; no 

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



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

 small. 



f. An intermaxillary pouch present ; no horns in 

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



y2. No intermaxillary pouch; females often horned; 

 knee tufts generally present. Gazella, p. 157. 



c^. Horns gnu-like, spinging close together ; muzzle bovine, 

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



Genus BOS. 



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

 Bison, H. Smith Griffith An, Kingd., v, p. 373 (1827). 



