508 THE AMERICAN NATURALIST [Vol.XLVI 



Left cheek and area surrounding '.eft Right cheek and area surrounding 

 eye is tan, extending to left ear. right eye is tan, extending back to 



It will be observed from a careful examination of the 

 photographs, Figs. 1, 2, 3 and 4, that these pigs show 

 certain minor differences in color distribution over the 

 body. These are due in part at least to the fact that the 



hair of the young pig is considerably longer than that of 

 the mother — the latter being a smooth haired pig, whereas 

 the former shows an Angora strain. Thus it will be seen 

 from Fig. 1, that the small patch of white hair over the 

 left eye of the young pig is larger than the corres] >on<ling 

 patch of white over the right eye of the mother, other- 

 wise the asymmetric resemblances shown in the front 

 view of the two pigs is essentially perfect, barring the 

 somewhat longer hair of the young pig. In Fig. 2, the 

 white band extending around the left fore shoulder of the 

 young pig is decidedly wider and more evenly distributed 

 than the white marking over the right shoulder of the 

 mother. This is doubtless due in part to the fact that the 

 hair of the young pig is longer and consequently overlaps 



