130 Bulletin American Museum of Natural History [Vol. LXXII 



dark bases show out and present a color much like that of true " darks." 

 Worn " darks" are in turn slightly darker in general tone than their 

 genetic twins in fresh pelage, for in individuals of the dark type there 

 is a narrow subterminal band of brown which gives a grizzled appear- 

 ance to the coat. 



One individual in the collection (Plate XX, left), No. 53819, a Stage 

 VIII & taken November 20, 1910 at Niangara, is unique in the presence 

 of three well-marked rusty-orange bands crossing the body transversely, 

 one over the shoulders, one at the level of the anterior end of the dorsal 

 spot (between these there is a light wash of the same color) and a third 

 across the back at about the level of the crests of the ilia. These bands 

 extend well down over the flanks but do not pass on over the belly. 

 Basically the individual is a normal light phase, and it might be pre- 

 sumed that these bars were due to some period of faulty packing or 

 storage of the skin, but because the orange color is exactly matched by 

 the hair tip color, occurring as a uniform wash over other specimens, I 

 am inclined to believe the unique pattern to be epidermal in origin. 



Mr. Lang made some notes on the skin and eye colors of a living or 

 freshly-killed male brought in to him alive at Ngayu, December 19, 1909. 

 These notes, directly transcribed are : 



Snout and skin that is visible beneath the scanty hair up to and around the 

 eyes, dark gray, nearly black. The tip of the lower jaw shows the same color. The 

 skin visible on ears, dark gray, inside pinkish. Pupil round, iris dark brown. Pads 

 on feet dark gray, pinkish in middle. The large elliptical place about the dorsal 

 gland is pinkish white. 



Emin's hyrax, diverse as are the colors and color patterns encount- 

 ered, does not have any difference in the pelages of the sexes, as far as 

 my eye can determine. Color, length and quality of the hair are seem- 

 ingly equal in male and female. 



A careful and detailed examination of this series has failed to reveal 

 the slightest difference between specimens from any of the localities 

 represented. It is concluded that within the areas the species is homo- 

 geneous. 



Age changes in pelage involve at least two phenomena. The first of 

 these is the replacement of the soft woolly juvenile pelage by a coarse 

 coat typical of all adults of the species. A second change, progressive 

 through life I believe, is the falling away of the hair in the region of the 

 snout. 



Mammals living so close to the equator as do the hyraxes in this 

 series are not subjected to great seasonal fluctuations in climate. In 



