TKLEGONY AND REVERSION. 



103 



pony differs from my Burchell zebra, in Avliich there a,re 

 only three distinct arches in the corresponding position. 

 When the incomplete arches are "restored" a pattern is 

 formed which is almost intermediate between that of the 

 Amsterdam quagga and the Somali zebra. From within 

 the lowest arch several obscure lines^ snch as occur in 



Fig. 30. 



Norwegian Pony, 

 zebra-ass hybrids, can be traced along the face. The 

 stripes doubtless originally ended in or near a mealy-coloured 

 muzzle, such as we find to-day in typical Exmoor ponies 

 and in some Somali zebras. I have seen only two ponies 

 with stripes on the face, and I imagine facial stripes are 



