320 



THE THIBETAN YAK 



The Yak, Bos grunniens, is a long-haired peculiar type, confined 



Fro. 168. — Yak. Bos grunniens. x jV. 



to the Thibetan plateau. B. {Anoa) depressicornis of Celebes is 

 characterised by its straight horns ; allied to it is B. mindorensis 



Fia. 169.— British Wild Ox, Bos tanms. From Vaynol Park, Bangor, x -^'j,. 



(Philippine Islands), supposed, however, to be a hybrid between 



