724 



PRIMA TES 



C. collaris, ft fuliginosus, < '. cethiops, and ft albig&m; all being 

 from West Africa. 



Cercojrithecus. 1 — Muzzle more or less short; ischial callosities 

 moderate ; tail long ; no talon to third lower molar. Build more 

 slender than in Macacus. Confined to Africa. 



The members of this and the last genus include those Monkeys 

 which in their comparative slender build and length of tail make 



the nearest approach 

 to the next subfamily. 

 There are numerous 

 species, among which 

 the Green Monkey (C. 

 cattitrichus), the Grivet 

 (ft griseo-viridis), the 

 Vervet (C. lalundi), the 

 Pluto Monkey (C.pluto, 

 Fig. 347), the Patas 

 (ft ruber), the Diana 

 Monkey (6'. diana), and 

 the Mona Monkey (G. 

 mono) are well-known 

 types. 



Subfamily Semno- 

 pitheeinse. - — Pelvic 

 limbs longer than the 

 pectoral ; tail very 

 long; no cheek- 

 pouches; stomach sac- 

 culated. Build slender. 

 This subfamily is 

 represented by three 

 genera, of which one is 

 African and two are 

 Asiatic. Mr. W. T. 

 Blanford, in his Mam- 

 mals of British India, observes that " the members of this subfamily 

 are readily distinguished by their slender form, and by the absence 

 of cheek-pouches. They are more purely herbivorous than the 

 Macaque Monkeys, and a considerable portion of their food consists 

 of leaves and young shoots. In consequence probably of the nature 

 of their food, these Monkeys are more delicate than the species of 

 Muriiriis, and are thus less easily kept in captivity. They are con- 

 sequently far less well represented in European museums, and have 

 been less studied by European naturalists. Very little is known of 

 their general life-history or of their feeding habits." 



1 Krxleben, Syst. Regne. Animal, j>. 122 (1777). " Or Colobinw. 



Fie 347. 



-Tlic Pluto Monkey (Cercopithecus plvio). From 

 Gray, Proc. Zool. Soc. 184S, p. 57. 



