INTRODUCTION 

 Genus Cacajao. 



liii 



Cacajao Less., Spec. Mamm., 1840, p. 181. Type Simla 

 melanocephala E. Geoffroy. 



193. Cacajao calvus Vol. I, 301 



194. Cacajao rubicundus " I, 304 



195. Cacajao melanocephalus " I, 305 



Genus Saimiri. 



Saimiri Voigt, Cuv. Thierr., I, 1831, p. 95. Type Simla 

 sclurea Linnaeus. 



196. Saimiri sciureus Vol. I, 310 



197. Saimiri cassiquiarensis 



198. Saimiri macrodon 



199. Saimiri madeira 



200. Saimiri ustus 



201. Saimiri boliviensis 



202. Saimiri b. nigriceps 



203. Saimiri cerstedi 



" I, 



311 



" I, 



312 



" I, 



313 



" I, 



314 



" I, 



315 



" I, 



316 



" I, 



316 



Subfamily C. Aotin^e. 



Genus Aotus. 



Aotus Humb., Rec. Obs. Zool. et Anat. Comp., 1811, 

 (1815), pp. 306, 356, pi. XXVIII. Type Simla trlvlr- 

 gata Humboldt. 



204. Aotus infulatus Vol. II, 5 



205. Aotus nigriceps 



206. Aotus senex 



207. Aotus rufipes 



208. Aotus roberti 



209. Aotus miriquouina 



210. Aotus boliviensis 



211. Aotus lanius 



212. Aotus vociferans 



213. Aotus griseimembra 



" II, 



8 



" II, 



8 



" II, 



9 



" II, 



10 



" II, 



10 



" II, 



11 



" II, 



12 



" II, 



13 



" II, 



15 



