310 CLASS MAMMALIA. 



go to his assistance. But more generally, they remained 

 deaf to his cries, and he would often have fallen to the 

 ground, but for the assistance of the attendants. When 

 he was altogether abandoned, an attempt was made to 

 suckle him artificially. He drank, but other cares, which 

 none but his parents could afford him, were necessary, and 

 he perished for the want of them. 



The adult Ouistitis never showed much intelligence. 

 They appeared extremely suspicious and very attentive to 

 what was passing around them, and to judge by the viva- 

 city of their looks one might suppose that their penetra- 

 tion was great. However, they had no discrimination of 

 persons, mistrusted all, and menaced indifferently with 

 their bite, those who fed them and those whom they saw 

 for the first time. They were evidently incapable of 

 affection, but extremely subject to anger and irritation. 

 Under the influence of fear, they would fly to conceal them- 

 selves, uttering a short but piercing cry. At other times, 

 and without any apparent motive, they would send forth 

 a sharp sort of hissing sound, singularly prolonged in 

 one key. They exhibited but little vivacity or agility in 

 motion. They used much precaution in ascending and 

 descending in their cage. 



The squirrel, with which these animals have many re- 

 lations, is, however, much superior to them in activity, and 

 not far removed in degree of intelligence. The size of 

 the adult Ouistiti is about seven or eight inches at most 

 from tail to occiput. The tail itself about a foot in 

 length. 



The Marikina is a pretty little animal which has often 

 been brought into Europe. Its elegant form, graceful and 

 easy motions, beautiful fur, intelligent physiognomy, soft 

 voice, and affectionate disposition, have always constituted 

 it an object of attraction. 



The Marikina, or silky monkey, can be preserved in 



