PAPIO CYNOCEPHALUS. 
65 
Specwiens belonging to the Paris Museum. 
1 cJ, Cynocephalus babuin (Desm,). Alenagerie Afrique (on under surface of stand). No. 318. 
“ Donne par M. le Prince de Joinville, on Pa dit^ de Guinee^ mais casele plus grand doute . . . 
ayant ete achete.^’ This is the specimen figured by Is. Geoffr. St.-Hilaire_, Arch, du Mus. ii. 
1841, pi. 34 (6). 
1 ? , Cynocephalus babuin. Menagerie Afrique. 
On under surface of stand, “ Cynocephale mort a la Menagerie.” “ Siinia {Cynomolgos) 
{Cynocephalus) . No. 315. Cynocephale babuin, Frederic Cuvier.” 
From the foregoing Table (pp. 6l2 & 63), in which the annulations of the hair in 
eleven individuals referable to this species have been recorded in millimetres, it will be 
seen that the yellow rings cannot be said to be in excess of the black annuli. Neither 
is the greenish or olive hue of the baboons brought about by the yellow subapical 
oands being larger than the black tips, for, so far from this being the case, they are, as 
a rule, narrower; only in three instances in the foregoing table are they broader. 
The real explanation of the general tints assumed by this baboon is to be sought for 
in the degree of intensity of the colouring of the yellow and dark terminal bands. 
When more than three or four of these bands are developed, they are not visible 
in the ordinary hairs, as they are hidden hy the mass of the pelage, and only 
the rings of the longest hairs may he visible; but as these long hairs are relatively few 
compared with the mass of the hair comprising the mantle, they become merged in the 
general effect. The annuli in the hairs of this species are never defined in the clear 
way so characteristic of the Hamadryas and of the West-African Orange-coloured 
Baboon [P. choras, Ogilby). In the young of P. cynocephalus, as in other species, the 
annulation of the hair is practically non-existent, and the degree to which the 
annulations are developed in different individuals from the same locality, quite apart 
from the differences produced by age, has yet to be ascertained; moreover, there 
are not sufficient specimens available at present to determine whether any particular 
locality is characterized by a special numerical type of annulation in the different kinds 
of hairs. Baboons live in immense troops, in which inbreeding must of necessity 
occur to a great extent, and it is well known that in any one of these troops an 
immense diversity of colouring prevails. 
The pelage of baboons from the interior of the country, especially about Mpapwe, 
is of a somewhat finer texture than that of baboons from Lamu and Mombasa, 
and is sufficiently so as to attract attention when individual hair-s are examined. 
The exact character of the climatic conditions of the two areas would require to be 
accurately ascertained before any suggestions were hazarded by way of explanation. 
Among the baboons dealt with in this article, two are of special interest. The 
first was obtained at Lamu, on the sea-coast of British East Africa, and the second 
at Unguru, about 120 kilom. to the west of Pangani. The former was described by 
K 
