ORDER II. QUADRUJIAXA. 19 



has a pointed white I)canl, and a wiiite mark, in the shape of a crescent, 

 on the forehead. The top of tlie head is greenish. 



The Varied ilonkey (C. monrt) is also variegated. 



The Potas (C. ful^nt) is entirely red. 



Eed-eared Monkey (C cvijthrulis). Color, gray; tail, red, a dark lino 

 running along the upper surface. 



Campbell's Monkey (C. CdiiiplKUit). Hair long, and parted on the 

 back ; grayish ; beneath, dirty white. The fore part and sides of the crown 

 of the head are encircled by a black line. 



The Bearded ilonkcy (C. pogoiiids). ^^ery long, grayish hair; a spot 

 on eacli side of the head and on the crown, and a large tuft of hair on each 

 cheek, distinguish this species. 



There are several smaller siiecies, of gentle temper, and capable of con- 

 siderable attachment. They are the Talapoin ilonkey ( C. ia/upoiii), the 

 ]\Iustache IMonkey (C. cephun), the Ilocheur Mt)nkey (C. iiictitaux), and 

 the Vaulting ^lonkey (C. pet(mridti) . The C. Martini, discovered a few 

 years since, belongs to this group. Its color is dark gra}^ ; the crown of 

 the head, tail, and lower parts of the limbs blackish. There are the Green 

 Monkeys, of larger size, nearly related to these, and the ^langabeys, 

 C. (cl/iiopn and C. fuliijinosas, of a dusky color, with white eyelids, 

 also distinguished by more elongated muzzles, and some peculiarities of 

 movement. 



Genus CoLOEr.s. — The name of this group is derived from the Greek 

 word holobus, maimed, or imperfect. Nine species are known. They have 

 only one sort of hair, and arc without the thumb. 



The Black Colobin (^Colohas satdwis) cannot be domesticated. It will 

 not endure captivity, and wdien captui'cd refuses all food, and seems to 

 demand its liberty with mournful cries. 



The Full-bottomed Monkey ( C. pujijcomos) has a long mane, yellow- 

 white. 



The C. querer:a, found in Abyssinia, is white, and the (J. Jcrru/jiiiosiis, 

 of Sierra Leone, is of a deep bay color. The rest of the species are of a 

 black ground color. 



The Colobi and Cercopitheci are AfVican monkeys. Great numljcrs of 

 them are slaughtered annually for the sake of their hides, which, in Western 

 Africa, are important articles of conmierce. 



Genus >SE:MNoriTiiECUS — The Doucs. Cuvier places this division next 

 to the Gibbons, which it much resembles in many important jiartieulars. 



Semnopithecus has a projecting muzzle, callosities on the buttocks, 

 and only one kind of hair, like the Gibbons ; it is also without cheek- 

 pouches. There are several soecies of this group ; twelve or fifteen 



