194 



APES AND MONKEYS. 



upper Amazon, at San Paulo, near Ega. They are described as measuring only 

 7 inches in length, exclusive of the tail. The tiny little face is furnished with long 

 brown whiskers, brushed back over the ears ; the general colour of the body being 

 brownish-tawny, but the tail elegantly ringed with black. Mr. Bates adds, that 

 this marmoset ranges as far north as Mexico, and is the only Amazonian primate 

 that wanders far from the great river plain. The silky marmoset has, however, 

 also been recorded from Mexico. 



THE PINCHE ( nat. size). 



THE LONG-TUSKED MARMOSETS, OR TAMARINS. 

 Genus Midas. 



The marmosets of this group are at once distinguished from those of the 

 preceding genus by the circumstance that the tusks, or canine teeth, of the lower 

 jaw are considerably longer than the front, or incisor teeth; so that the whole 

 series of lower teeth does not present the even and regular height characteristic of 

 the short-tusked marmosets. Why Buffon applied the name tamarin to one 

 member of this group, we are unaware ; but it has been subsequently very 

 generally adopted for two of the species, and is a short and convenient name by 

 which to designate the entire genus. None of the tamarins have pencilled ears ; 

 neither, as we have already mentioned, have they ringed tails, although some of 

 the species have the back marked with dark and light cross-bands. 



THE NEGRO TAMARIN (Midas ursulus). 



One of the best known of all the species is the common or negro tamarin, which 

 is found in Guiana and the lower part of the Amazon valley. It belongs to a 

 group in which both the forehead and face are hairy, and the hair of the head 



