990 REPORT OF THE HARVARD AFRICAN EXPEDITION 
Colobus verus Van Beneden. Van Beneden’s Guereza 
Colobus verus Van Beneden, Bull. Acad. Sci. Bruxelles, vol. 5, p. 344, p. 115, 1838: “Africa.” 
Head with reddish-olive crest; band on forehead and sides of face pale yellow; neck and back, 
arms and thighs grizzled olive brown and black; nape and anal region tinged with reddish; throat 
white, under parts ashy gray; hands, feet, and base of tail reddish brown, rest of tail olive brown. 
Gold Coast to Liberia. 
This must be a rare species, finding its northern limit in Liberia or possibly 
Sierra Leone. Biittikofer is the only collector to secure it in the Liberian forests. 
He procured an adult male at Schieffelinsville on the Junk River and a female at 
Grand Cape Mount, the latter shot from a tall mangrove tree. In its general 
coloring it so resembled Cercopithecus callitrichus that he at first took it to be 
that species, but the very short thumb would always distinguish the two with 
the specimens in hand. This is the C. cristatus of Johnston’s list. 
SIMIIDAE or PONGIDAE Anthropoid Apes 
Pan satyrus (Linné). Chimpanzee 
Simia satyrus Linné, Syst. Nat., ed. 10, vol. 1, p. 25, 1758: Gaboon. 
The well-known chimpanzee is a large tail-less ape, black with usually a 
small tuft of white hair on the buttocks. Although a number of species or races 
have been named, it is not certainly known which if any of these are valid, for 
most of the characters ascribed to them seem to be largely matters of individual 
rather than geographic variation. For the present therefore we refrain from 
using a trinomial, although the name leucoprymnus is applicable, if valid, to the 
Liberian chimpanzee. It is curious that in all our journeys through the forest 
trails of Liberia, we only once came upon chimpanzees, although they are ap- 
parently found throughout the country in primeval forest. At Tappi Town, in 
extreme eastern Liberia, the junior author saw chimpanzees in the forest and 
heard a rapping sound which the natives said the animals made by beating on 
hollow logs. The chief of the village requested that none be shot, because the 
natives believe that every chimpanzee is linked with the soul of a man, so that 
if one is killed the man will die. At Monrovia one or two were seen in capitivity, 
and made affectionate pets. Most of these tame ones seem to come from the 
southeastern part of Liberia especially the Cavalla River. Biittikofer had two 
young ones’ from Grand Bassa and the River Cess, but secured an adult male 
also on the Du River and a skull from Fisherman Lake in the northwestern corner 
of Liberia. He mentions further that in November, 1881, a troop of chimpanzees 
was several times heard on the mountain back of Robertport though none was 
seen. ‘They are said to drum on their chest with the clenched fist when angry 
and to make a horrible noise, but apparently Biittikofer had no personal evi- 
dence of this habit, and it is generally regarded as more characteristic of the 
Gorilla. In Liberia this is generally called ‘‘ Baboon,” with the accent on the 
first syllable. 
