112 EINAR I.ONNBBRG, MAMMALS COLLECTED BY THE SWEDISH ZOOLOGICAL EXPEDITION ETC. 



The length of the dry hind foot without claws is about IOV2 — H cm. and the 

 length of the dry ears 13 Va — 14 cm. 



Hyracoidea. 

 Procaviidae. 



Procavia brucei borana Lonnberg. 



LOnnbeeg: Ann. & Mag. Nat. Hist. Ser. 8, Vol. IX, p. 66. 



This race of Hyrax belongs like its geographical neighbour P. pumila rudolfi 

 Thomas to the Heterohyrax-gvou^, but it differs strikingly from it as well with regard 

 to the colour of the fur as especially with regard to the shape and dimensions of the 

 skull. Its fur is also longer. The average length of the hair appears to be in the 

 present specimen about 16 mm. but it is an old female with somewhat worn fur. 

 Many hairs attain a greater length, not counting the great number of long black 

 bristles which are scattered all over the body, but especially numerous on the poste- 

 rior part of the rump. The general colour of the back is umber brown, grizzled with 

 whitish rings and blackish tips to the hair. The not visible parts of the underfur 

 is basally smoke grey to pale slate grey, different in different places, externally dull 

 cinnamon. The flanks are paler and more greyish than the back. The dorsal spot 

 is large, its colour is cinnamon n:o 4 according to » Repertoire de couleurs». The 

 face is much darker than the back, blackish brown. The superciliary band creamy 

 white, and the lips white. The back of the ears grizzled of greyish white and broad 

 dark brown tips to the hair. The sides of the neck are pale brownish grey, grizzled 

 with blackish brown tips and rings to the hair. The underfur of these parts is whit- 

 ish. The under side is creamy white, with a slight huffish tinge which is a little 

 more pronounced between the fore limbs and in the anal region. Feet very pale 

 yellowish grey with some longer dark brown hair. 



Length of head and body about 42 cm. 



Length of hind foot about 53 mm. Both these measurements are taken from 

 the type which is an old female, stage VIII according to Thomas' terminology. 



If the skull of this Hyrax is laid at the side of that of P. pumila rudolfi 

 Thomas the difference is found to be very striking. The former is much more elongate, 

 and, in spite of its much greater length, its width as well across the zygomatic 

 arches as across the postorbital processes is not larger than the same of fullgrown 

 specimens of P. p. rudolfi. The superciliary portion of the frontals is gradually raised 

 a little towards the free margin over the orbit so that the forehead becomes some- 

 what concave. The nasals are comparatively long, rather broad posteriorly, but sud- 

 denly narrowed and provided with parallel side contours in more than half of the 

 anterior part. The whole preorbital region of the skull is longer as well, as the 

 tables of measurements indicate if compared. 



