28 SIMIAD.E, 
Semnopithecus? albigena, Gray, P. Z. S. 1850, p.77,t.16! Cerco- 
cebus albigena, Pucheran, Rev. Zool. 1857, p. 241. 
Hab. Africa, Du Chaillu. 
‘15. MACACUS. 
Head rounded. Face elongate. Eyebrows prominent, becoming 
more so with age. Tail cylindrical, much longer than the body, 
pendent, or short, or very short. Hab. Asia. 
Pithecus (Macaque), Geoff. and Cuvier, 1799. Macaca, Lacép. 1799. 
Macacus,Desm. Cynocephalus (Macaque), Latreille, Cynopithecus, 
Blainv. Pithex, Hodgson. 
When young, docile and meek; when adult, malignant and fero- 
cious. They breed early; period of gestation seven months; they 
are not completely adult for four or five years. The genitals of the 
females are much dilated and red during the rutting-season. 
a, Forehead with diverging hairs divided by a central line ; 
crown with a tuft of long radiating hairs; tail longer than 
the body. Species 1. 
b. Forehead with short diverging hairs on the side; crown with 
long erect hairs, longer and radiating behind ; tail longer 
than the body. 2. 
c. Forehead with short reflexed hairs on the sides. 
* Middle of forehead and crown with longer hairs, which 
form a radiating tuft behind; tail shorter than the 
body. 3. 
** Middle of the forehead and crown with very long hair, 
forming a compressed crest behind; tail very short. “4. 
d. Forehead and crown with short hair directed forwards, and 
with a tuft of short radiating hairs behind ; tail not so long 
as the body. 5. ; 
e. Forehead and crown with short reflexed hairs. 
* Formed into a narrow, low, central, longitudinal crest. 6. 
** Not forming any crest. 
Tail long. 7, 8. 
Tail short: 9,10. Tail-very short: 11. 
1. Macacus sinicus. The Manga or Bonnet Macaque. B.M. 
Forehead with short diverging hairs, divided by a central line; 
crown with a tuft of long radiating hairs; tail longer than the 
body ; fur greenish brown, grizzled with yellow rings; throat, 
chest, underside of the body, and front of the thighs whitish. 
Bonnet chinois, Buffon, H. N. xiv. t. 80. Simia sinica; Zinn. Cyno- 
cephalus sinensis, Latr. Cercopithecus sinicus, Desm. (not Geoff). 
Macacus radiatus, Geoff. (Mus. Paris). 
