62 
THE MAMMALS OF EGYPT. 
forming a pit. The last lower molar possesses a well-developed terminal cusp in 
line with the two outer cusps, and it is connected with the second inner cusp by a 
short folded ridge. The mesial length of the last lower molar of the Fio Hill skull 
is 13 mm., while that of the Elmetaita skull is 15 mm. 
The most marked diiference between these two skulls lies in the form of the muzzle 
and in the greater length of the muzzle of the skull 99.7.8.1. 
Papio anuhis, (J, Fio Hill, East of Lake Kudolf. Keg. No. 99.7.8.1. Stuffed. Presented by 
Lord Delamere. 
Approximate measurements:— 
mm. 
Snout to vent.760 
Vent to tip of tail. 490 (hair at end of tail 90 mm.). 
Height at shoulder.560 
This specimen, with uniformly annulated hair above and below, is somewhat 
different in its coloration from the specimen from Elmetaita, and, moreover, it has a 
considerably longer muzzle. The hair on the occiput is 120 mm. long, on the shoulder 
132 mm., and on the lumbar region 70 mm. The difference in coloration is so slight, 
however, that it is impossible to define it accurately in words, except that the hairs 
below the bare buttocks have a distinct greyish tint at their bases, and the thighs also 
posteriorly are not so rufous as in Mr. Jackson’s specimen, which will probably prove 
to be referable to P. neumanni, a form not to be regarded as more than a local 
race of P. anubis. The hands, and also the feet, have much less black on them than 
have those of the Elmetaita individual. The hairs behind the ears are greyish at the 
base, and the basal portion of the fur generally is not quite so dark. The hairs 
margining the whiskers are much the same as in Mr. Jackson’s specimen. 
The skull, besides having the facial portion longer, has the lateral ridges much more 
distinctly marked, and between them and the much arched nasals there is a wide 
concavity from the orbit to the premaxillaries. In the Elmetaita baboon no concavity 
occurs before the orbital margin, which slopes gradually downwards to the middle of 
the nasal, on each side of which there is a decided concavity, but of no great extent. 
There is thus in this latter skull nothing corresponding to the strong nasal ridge and 
longitudinal concavities of Lord Delamere’s specimen. Besides this, in the Fio Hill 
skull there is a much greater interval between the end of the nasals and the tip of the 
premaxillaries than exists in the Elmetaita skull, in which those bones are much arched 
anterior to the nasals, and in the former the muzzle anteriorly is broader than that of 
the latter. The superciliary ridge is more developed and more upwardly directed than 
in the Elmetaita skull, but this is probably due to its somewhat greater age. 
The teeth of this male taken as a whole are smaller than in the Elmetaita baboon. 
