MAMMALS OF LIBERIA 589 
COLOBIDAE Colobus Monkeys 
Colobus badius badius (Kerr). Red and Black Colobus; ‘‘Lion Monkey” 
Simia (Cercopithecus) badia Kerr, Animal Kingdom, vol. 1, p. 74, 1792: Sierra Leone. 
Crown to base of tail, and upper part of arms and legs, shining black; under parts from chin 
to tail, and the limbs chestnut; tail chestnut mixed with black, especially terminally. Sierra 
Leone and Liberia. 
Common and generally distributed in the high forest of Liberia. We saw a 
good many in small troops. The stomachs of two that we opened were filled 
with finely chewed green leaves and they probably eat certain forest fruits as 
well, for on one occasion we surprised a company of fifteen or twenty in a 
large tree that bore an abundance of ripe pulpy fruits. On seeing us they made 
off with magnificent leaps, dropping twenty or thirty feet to branches below, 
one after the other. Their call of alarm is a series of five or six short barks quite 
different from the gruff double utterance of the Campbell’s Guenons. At 
Gbanga on September 4 an adult female was brought in containing a small foetus 
and on the 10th at the same place another with a larger fetus in which the hair 
was beginning to appear. The native hunters are skillful in securing these mon- 
keys, and sometimes attract them within shot by imitating the squeals of a 
young one. 
Colobus polykomos polykomos (Zimmermann). Ursine Colobus; “Black Monkey” 
Cebus polykomos Zimmermann, Geogr. Geschichte, vol. 2, p. 202, 1780: Sierra Leone. 
Face, sides of head and throat silvery, a fringe of long silvery hairs extending to the axilla; 
rest of the body shining black, the tail contrastingly white. Sierra Leone and Liberia. 
It is interesting that in the West Coast forest area where so many rather 
primitive types are found, the black and white colobus monkey should be one 
of the least specialized in the development of the white fringe, which culminates 
in the extraordinary display of the East African C. caudatus with its shawl-like 
mantle and heavily tufted tail. Bittikofer believed this was slightly less common 
that the preceding species and this was practically our experience, though it is 
not rare in the high forest, where it seems to be generally distributed. It is 
represented by a very slightly different subspecies in the forest area of the Ivory 
Coast. J. A. Allen (Journ. Mamm., vol. 1, p. 96, 1920) showed that both these 
colobus monkeys were named on the basis of specimens in the old Leverian 
Museum brought from Sierra Leone. The present species is the C. ursinus of 
Jentink’s list, and the preceding is the one generally known as C. ferrugineus. 
Jentink also describes a young Colobus which differs from the adult of C. poly- 
komos in that the coloring is nearly reversed with the back white and the tail 
black at base and tip. Undoubtedly this is a young of the species for it is now 
well known that the young of these monkeys are very differently colored from 
the adults. 
