MONKEYS. 
19 
'Giieve'/Ai (Colohns ^itereza), ol Abyssinia, wliicli lias on each side 
a peculiar fringe of long white hairs reaching quite down to the 
ground. A nuinher of specimens of these black and black-and- 
white Guerezas are ]>laced in case III, to exhibit the transition [Case HI.] 
from the black C, mtancu^ ( 28 ) to species like C. sliarpei ( 27 ), 
6'. camlatus ( 26 ) and (J. rellerosus ( 29 ), with much white. The 
long-tailed African Guenons, CercopitlievKS (Nos. 35 to 57 ), 
provided with cheek-pouches in which food can be temporarily 
stored, have large posterior callosities and extremely long tails ; 
many of them are brilliantly coloured, as, for example, the 
Mona Guenon, C. moiia ( 52 ). The Macaques, ^Macacvs (Nos. 61 
to 74), are chiefly inhabitants of Southern Asia, but one species, 
Fig. 11. 
Heads of Male Prol:)os':*is Monkey, Nasalis larmtus (A), 
and Orange Snub-nosed Monkey, Rhinopithecus yo.vellance (]^). 
^lacams iiuwa.^ (72), occurs in North Africa and also leads a 
])iecarious existence on the Rock of Gibraltar. The Baboons, 
Fapio (Nos. 79 to 90 ), hideous animals with powerful teeth, 
projecting jaws, nearly equal fore and hind limbs, and dull- 
coloured fur, are natives of Africa and Arabia (case IT). [Case II.] 
One species, the Mandrill, Papio maimou ( 87 ), of West Africa, 
has a short stumpy tail and a ])erfectly naked face, the skin of 
which is brightly marked with blue and vermilion. The Drill, 
P. leucoplid us ( 88 ), is an allied western species, without the 
bright colours. All the others are dull-coloured animals, with 
well-developed tails, the South African Chacma, P. porearius 
c 2 
