Plate XXI 

 Color patterns due to wear in the pelage of Dendrohyrax d. emini. The left 

 (A. M. N. H. No. 53836, ad. d% Niapu, December 17) is a light phase with unworn 

 pelage. In the center is a specimen (A. M. N. H. No. 53815, ad. 9, Medje July 

 27) with greatly worn pelage, in which over a broad area the dark bases of the hair 

 show through. The specimen on the right (A. M. N. H. No. 53828, ad. 9 , Niapu, 

 December 1) is an example of the dark phase in which the pelage is worn about 

 equally to that in the center. 



