QUADRUMANA. 39 



does this name import ? Give the derivation of syndactulus. Why was 

 it given to this species ? Where does it live and in what country is it found : 

 Describe its habits, size, gait, food, sounds, &c. For what is it most cele- 

 brated ? What is said of the silvery or agile Gibbon, H. agilis ? 



What is the most striking peculiarity of BABOONS ? What do they resem- 

 ble ? Where are they found ? On what do they live ? From what is the 

 name derived? What is said of their colors ? How are they distinguished 

 from the apes ? Describe the Variegated Baboon, or Mandril. Give the 

 derivation of the generic and specific terms. What is said of its size, 

 color, habitat, &c. How do the natives regard it? From what is Semno- 

 pithecus derived ? In what respect does this genus resemble the Gibbons ? 

 How do they differ from the Gibbons? By what are they distinguished? 

 What is said of their hair, eye-brows, stomach, disposition, intelligence, 

 &c. ? What is said of the Budeng ? What of the Cochin China monkey ? 



SECTION VI. 



AMERICAN MONKEYS. 



These are a very numerous division found in South America, 

 and arranged into two leading groups, viz. : the SAPAJOUS and 

 SAGOINS; the former having muscular, grasping tails; the latter 

 feeble ones, unfit for grasping. They are sometimes called the 

 four-fingered monkeys, as the thumb is reduced to a mere rudi- 

 ment, and in some species is entirely wanting. They are with- 

 out cheek-pouches and callosities. 



I. SAPAJOUS. 



These may be regarded as representing the GUENONS, (Cerco- 

 pithecus, Gr. kerkos, a tail,) of the Eastern Continent. The whole 

 of them are very active, climb well, and are well formed for living 

 and moving among the trees. The fore-hands show a less per- 

 fect organization than is seen in the monkeys of the Eastern 

 Continent. The -palms of both extremities are endowed with 

 exquisite sensibility. These monkeys are of small size and play- 

 ful disposition. Gathered in herds, they lead a merry life, feed- 

 ing mostly on insects and fruits. The facial angle is about 60o. 

 Amonfr them we include the HOWLERS, (Mycetes.) as has been 

 done by other naturalists. The Howlers differ, however, from 

 the other Sapajous in some respects, particularly in having a 

 facial angle of but 30, but agree with them in having prehen- 

 sile tails. Of the numerous species of these and other South 

 American monkeys, we can notice only the most interesting and 

 prominent. 



Mycetes, (Gr. fivx^Tr^, muketes, a Howler.) 



These are the largest monkeys of America, and remarkable 

 for the development of the vocal organs. The bone at the root of 



