SPECIES OF MAMMALIA. 



V. Callithrix, Cuvier. Facial angle ofW°.; head 

 round; muzzle short; nostrils narrower than the range of 

 upper cutting teeth; tail not prehensile^ covered with short 

 hairs ; ears very large. Living in troops, springing from 

 branch to branch, and eating fruit, eggs, or young birds. 



90. 1. S. C. sciureus (the Squirrel Monkey or Caimiri). 

 Fur olive gray ; muzzle black ; arms and legs bright red. 



Simla sciureus, Lin. Sys. Nat. 43. Callithrix sciureus, 

 Geoff. Ann. Mus, xix. 113. 



Saimiri, Buff. xv. Titi, Humboldt. Obs. Zool. 322. 

 Orange Monkey, Pennant, Quad. 220. Squirrel Monkey, 

 Shaw. Zool. I. 77. Caimeri, South Americans. 



Icon. Buff. XV. t. 67. Audeb. Hist. 5, § 2. /. 7. Ency. 

 Meth. t. 18./. 1. F. Cuvier, Mam. t. — Shaw, t. 25. 



Inhabits the Brazils and Guyana. 



Var. h. Varied with red and black ; double the size of 

 the single coloured variety. 



91. 2. S.C. personata (the Masked Monkey). Fur yel- 

 low gray ; head and the four hands blackish ; tail reddish. 



Callithrix personatus, Geoff. Ann. Mus. xix. 113. 

 The mask monkey of Dealers. 



Icon. 



Inhabits parts of Brazil. 



92. 3. S. C. lugens(the Widow Monkey). Fur blackish; 

 throat and anterior hands white ; tail a little longer than 

 the body, black. 



Simla lugens, Humb. Obs. Zool. 319. Callithrix lugens, 

 Geoff. Ann. Mus. xix. 113. 

 La viduita, Humboldt. 



Icon. 



Inhabits the forests on the banks of the Cassiquiare. 



93. 4. S. C. amicius (the ruffed Sagoin). Fur blackish 



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