PAPIO ANUBIS. 
49 
In the skin of the Samni baboon the hair is annulated above and below with yellow 
and black, bnt the yellow is not brilliant. The yellow and black are equally distri¬ 
buted. The sides of the face are sparsely covered with yellowish-grey hairs. A narrow 
line of deep black hairs runs down the interorbital space. The hairs behind the ears 
are rather long and not annulated, bnt greyish brown with a yellowish tinge towards 
the tips. Similar hairs occur behind the ears of P. neumanni, and the skull referable 
to that skin also proves the animal to have been not adult. A few black hairs occur 
along the lips and on the chin ; the hairs on the throat and upper neck are greyisli 
with yellowish tips. The fore limbs are moderately finely annulated yellowish and 
black in about equal proportions, but on the hind limbs the yellowish prevails and the 
black annuli are obscure except in the proximal portion of the limbs and on the upper 
surface of the feet, which are concolorous with the hands. The base of the tail is 
concolorous with the back, but it becomes more yellowish further down towards the 
tip, which has longish hairs but no tuft. 
The bases of the hairs are greyish brown, with a yellow annulus about 12 mm. broad 
situated at 80 mm. above the base; the black tip of the hair is 15 to 20 mm. in 
length. On the shoulder the hairs are 100 to 110 mm. in length; on the rump they 
are little more than half that length. On the fore limbs they are not more than 30 
to 40 mm. long, while on the tibial portion of the hind limbs they are as much as 
50 to 60 mm. 
I consider the differences exhibited in these skulls attributable to age, and I have 
no hesitation in identifying the Samui skull with the other skulls from Muanza, 
so that the skin of this animal may be taken as illustrating the appearance of these 
baboons in life. When the foregoing skin is placed alongside the stuffed specimen of 
the type of P. heuglini^ the two baboons are seen to be inseparable externally. 
In the base of the more mature of these two skulls are found all the characters of 
that of the skull of P. doguera, and in the younger skull all the features of the skull of 
the type of P. heuglini. The maxillary pit in both, but especially in the adult, is very 
pronouncedly marked, much more so than in any other baboon skull which has come 
under my observation, as below the canine ridge of the maxilla the wall of the maxilla 
is not vertical, but is directed downwards and inwards. 
These skulls seemingly represent a local race of P. anubis. 
There is also a large skull of a baboon from Dar Tertit, collected by Schweinfurth, 
which, from the size of its teeth and the character of its last lower molar (which is 
not yet above the level of the alveolar portion of the jaw), seems to be closely allied to 
the large West-African baboon properly referable to P. olivaceus, Is. Geoff. 
11 
