112 EINAR LÖNNBERG, MAMMALS COLLECTED BY THE SWEDISH ZOOLOGICAL EXPEDITION ETC. 
The length of the dry hind foot without claws is about 10!'/2—11 cm. and the 
length of the dry ears 13'/2—14 cm. 
Hyracoidea. 
Procaviide. 
Procavia brucei borana LÖNNBERG. 
LÖNNBERG: 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-group, 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 buffish 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 VITI 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. 
