28 S1M1ADJE. 



Semnopithecus ? albigena, Gray, P. Z. S. 1850, p. 77, t. 1(5 ! Cerco- 

 cebuB albigena, Pucheran, Rev. Zool. 1857, p. 241. 



Hub. Africa, Da Chaillu. 



15. MACACUS. 



Head rounded. Face elongate. Eyebrows prominent, becoming 

 more so with age. Tail cylindrical, much longer than tbe body, 

 pendent, or short, or very short. Hub. Asia. 



Pithecus (Macaque), Geoff, and Cuvier, 1799. Macaca, Lacep. 1799.' 

 Macacu8,Z)esm. Cynocephalus (Macaque), Latreille. Cynopithecus,, 

 Blainv. Pitbex, Hodyson. 



"When young, docile and meek ; when adult, malignant and fero- 1 

 cious. They breed early ; period of gestation seven months ; they 

 are not completely adidt 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 bddy. 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 cbinois, Buffon, II. N. xiv. t. 30. Simia siuica, Linn. Cyno- 

 cephalus sinensis, Latr. Cercopithecus sinicus, Desm. (not Geoff.). 

 Macacus radiatus, Geoff. (Mhs. Paris). 



