TELEGONY AND REVERSION. 



83 



the majority of the light bands in this filly, there were 

 probably at least twenty-four cervical stripes between the 

 occipital crest and the shoulder stripe in the ancestors of 

 the zebras. In the Somali zebra there are sometimes 

 fourteen cervical stripes extending into the mane, but 

 judging by the width of some of them a considerable 

 amount of blending has evidently taken place. 



A careful examination of the hind quarters of the 

 Somali zebra reveals the fact that there is a stripe which 



Fig. 25. 



Young Burchell's Zebra with " sliadow stripes." 



has nearly the same relation to the hip-joint as the shoulder 

 stripe has to the shoulder-joint. This, the crouj) stripe 

 (Fig. 24, C.S.) (which typically consists of two stripes), also 

 when single bifurcates; one limb running backwards across 

 the hind quarters, the other forwards to unite with the 

 first of a series of distinct stripes which arch across the 

 hind quarters, and may be known as the femoral stripes 



