SAKI MONKEYS. 173 



am /eta), which is distinguished by the presence of a pure white spot on the chest; 

 the general colour being black tinged with red. 



Another Brazilian species is the Moloch titi (C. moloch) which, 

 while agreeing with those just noticed in the nature of the fur, 

 differs in the colour of the hands and feet being of nearly the same grey hue as 

 that of the back. The general colour of the upper parts is dark grey, with a 

 grizzle of black and red; the cheeks, chest, and under-parts being reddish; and 

 both the hands and feet dark grey. 



The reed titi (C. donacophila) is a paler form, closely allied to the moloch. 

 Mr. Bates states that while on the Lower Amazon, when going ashore early one 

 morning, he found the forest resounding with the yelpings of a flock of whaiapu- 

 sai monkeys, which he thought probably belonged to this species. Although un- 

 successful in obtaining a specimen, he was enabled to see them for a moment, and 

 describes them as of small size, and clothed with long fur of a uniform grey colour. 

 Black-Fronted The black-fronted titi (C. nigrifrons), differs from any of those 



yet noticed by its rigid and bristly fur, and also by both the hands 

 and feet being black. Its general colour is grey, tinged with black ; but it takes 

 its name from the black forehead ; the ears, a spot on each side of the neck, as well 

 as the hands and feet, and the inner surfaces of the fore-arms and legs being of 

 the same sombre tint. The fur of the tail has a reddish tinge ; while the back of 

 the crown of the head and the nape of the neck are of a whitish-grey. 



The nearly related brown titi (C. brunnea), which is also known by the name 



of the masked titi, is subject to a great amount of individual variation in colour. 



Black-Handed The last representative of these monkeys we shall notice is the 



black-handed titi (C. melanochira), which is one of two species which, 



while agreeing with the one last-mentioned in its black hands and feet, is readily 



distinguished from the whole of those yet mentioned by the fur being soft and 



woolly, without any intermixture of long stiff hairs. The general colour of this 



titi is reddish, but the crown of the head, the throat, and the inner surfaces of the 



limbs are a mixture of black and grey. There is a variety known in which the 



fur is bright red. 



This species has been obtained from Bahia, on the eastern side of equatorial 

 Brazil, but we have not come across any account of its habits, neither are we aware 

 that it has ever been brought alive to Europe. 



THE SAKI MONKEYS. 



With the saki monkeys we come to a group containing only two genera, which, 

 while resembling the douroucolis and their allies in the non-prehensile character of 

 their tails, are distinguished from them (and likewise from all other American 

 monkeys) by the circumstance that all the front or incisor teeth of the lower 

 jaw, instead of being vertical, are inclined forwards. In this respect these monkeys 

 resemble the lemurs. Like the titis, they approximate to the howling monkeys 

 by having the sides of the hinder part of the lower jaw considerably expanded. 



Most of the sakis are characterised by having long hair on the crown of the 

 head, which may either be divided in the middle line, or may radiate from the 



