254 
MAMMALIA, 
of domestic cattle. It might perhaps be rendered useful by 
acclimatisation. 
Hollow-horned Ruminants, which have the bony nucleus of j i 
these horns partly filled up with cellules communicating with 
the frontal sinus, comprehend, as we have already said, the 
genera of Goats, Argalis, Sheep, and Oxen. 
Goats . — The chief characteristics of Goats are their horns, which 
turn upwards, are curvilineal, large, and divergent. A section of 
their horns is prismatic, or elliptic, and their front is often nodose ; 
their base rests on a protuberance of the frontal bones. Their 
forehead is also straight, and not protruding, as in Sheep, and the 
chin is furnished, especially in the male, with a long beard ; while 
their tail is short, and the body but sparsely furnished with fat. 
Their feet are, moreover, larger in proportion than those of Sheep. 
They only possess two teats. 
Several species of Wild Goats are recognised. We shall par- 
ticularly mention the Ibex of the Alps and the Caucasian Ibex. 
I 
