558 
MAMMALIA. 
have perished with her, had not she, collecting all her strength, 
and desperate in her anxiety and tenderness, thrown it with a 
fast-failing arm, on to a high branch, and in this way succeeded 
in preserving it from the unhappy fate which befell herself. 
Four or five species of Howling Monkeys are known, and all 
are natives of Columbia, Guiana, Brazil, and Paraguay. 
They are chiefly found on the hanks of the great rivers, such as 
the Orinoco, the Magdalene, &c. 
Genus Lagothrix . — The Lagothrixes (Hair-tailed Monkeys) are 
smaller and not so robust as the Howlers ; they have also a feebler 
voice. They live in troops in the forests of Columbia, Peru, and 
Brazil, and are very gentle, intelligent, and easily tamed ; it is 
even said that they are capable of affection for the person who 
is kind to them. They have a soft coat, and stand well on their 
hind-legs. 
Genus Eriodes . — The Eriodes are distinguished from the other 
American Monkeys by their nostrils, which are less apart than 
in the majority, by the absence or rudimentary state of the 
thumb in the anterior extremities, and by their nails, which are 
compressed and sharp like claws. Their habits are little known ; 
all that is certain about them being that they live in bands, and 
that their chattering voices are heard during the greater part of 
the day. Three species exist, and are found in Brazil. 
Genus Addles . — With the Ateles, as with the Eriodes, the anterior 
thumb does not exist, or, which is very rare, it is represented as a 
simple tubercle without any nail. It is this character which gives 
the name to the genus, Atele (from the Greek areA^s), meaning 
imperfect or incomplete. Their nostrils are altogether lateral, 
and their nails semi- cylindrical, as in nearly all the Monkeys. In 
addition, their hair is long and silky, while that of the Eriodes is 
short and woolly. 
The Ateles (Fig. 246) are recognisable by the excessive length 
and slenderness of their limbs, which, in addition to their slow 
and measured gait, has procured for them the denomination of 
Spider Monkeys. Like the Monkeys of the three preceding 
genera, they have the tail very developed, and callous at the point. 
With it they seize and carry towards them objects placed behind 
them without making the slightest bodily movement, and without 
the eyes co-operating in any way in this action. Is. Geoffrov 
