CONTENTS. 



i-Atfi 

 The Mandril or Rib-nose Baboon. 



Papio mormon. Plate XVII. . 200 



The Drill. 



Papio leucophceus. Plate XVIII. . . 203 



3 



The Monkeys of South America, or those of the New 



World . . . . a4 



The Howlers . . . . . 2d5 



The Araguato. 



Mycetits ursinus. Plate XIX. . . 208 



The Sapajous . . . . .211 



The Coaita. 



Ateles paniscus. Plate XX. . . 212 



The Marimonda . . . .213 



Humboldt's Lagothrix . . . 215 



The Horned Sapajou. 



Cebus fatuellus. Plate XXI. . .217 



The Large-headed Sapajou. 



Cebus monachus. Plate XXII. . 220 



The Siamiri. 



. Callithrix stiurem. Plate XXIII. . . 222 



The Douroucouli. 



Aotes trivirgatus. Plate XXIV. . 225 



The Couxio. 



Pithecia satanas. Plate XXV. . . 230 



The Cacajao. 



Pithecia melanocephala. Plate XXVI. . iS3 



The Striated Monkey. 



Hapalus jacchus. Plate XXVII. . , .6 



The Silky Tamarin. 



Midas rosaiia. Plate XXVIII. 239 



