CALLITHRIX. MAMMALIA. 55 



ish gray. Upwards of a foot long ; tail longer than the body. In- 

 habits Guiana. Buff. xv. t. 8. 



C. hypoleucus, Desm. (Simia hypoleuca, Humb.) The white-throat- 

 ed Sapajou. Fur black ; forehead, sides of the head,, throat, and 

 shoulders white. About a foot long ; tail longer than the body. 

 Inhabits Guiaiia.-^-Bn. xv. t. 9. 



2d DIVISION. SAGOINS. Tail long, not prehensile. 



Gen. 13. CALLITHRIX, Cuv. Geoff. Simia, Lin. Cebus, 

 Erxl. Saguinus, Lacep. 



Incisors f , canines {{, molars -f , 36. Canines of medium 

 size ; inferior incisors vertical and contiguous to the canines ; 

 head small, rounded ; muzzle short ; facial angle 60 ; parti- 

 tion of the nostrils not so broad as the row of the upper in- 

 cisors ; ears very large and deformed ; tail a little longer than 

 the body, not prehensile, and covered with short hair ; body 

 rather slender. 



C. scitireus, Desm. (Simla sciurea, Lin.) The Squirrel Monkey. 

 Fur olive gray ; muzzle blackish ; arms and legs of a bright red. 

 Nearly a foot long. Inhabits Brazil, Cayenne, &c. Shaw, i. pi, 25. 



Var. A. Back of one colour. 



Var. B. Variegated with bright red and black, and larger in size. 



C. personatus, Desm. Geoff. The Masked Monkey. Fur gray 

 fawn-coloured j head and fore hands blackish ; tail red, -Inha- 

 bits Brazil. 



C. lugens, Desm. Geoff. (Simla lugens, Humb.) Fur blackish ; 

 throat and anterior hands white ; tail scarcely longer than the body. 

 About a foot long South America. 



C. amictus, Desm. Geoff. (Simia amicta, Humb.) The Ruffed Sa- 

 goin. Fur blackish brown ; a half collar of white : hands of 

 the anterior extremities of a pale yellow ; tail longer by a fourth 

 than the body. Almost double the size of the sciureus. Inha- 

 bits South America. 



C. torquatus, Desm. Geoff. The Collared Monkey. Fur chestnut 

 brown, yellow below ; a half collar of white ; tail a little longer 

 than the body. Inhabits Brazil. 



C, moloch, Desm. Geoff. Fur ash-coloured, with annulated hairs 

 above ; temples, cheeks, and belly of lively red ; end of the tail 

 and hands of a clear gray, almost white j tail almost a half longer 

 than the body. Size almost double that of the sciureus. Inha- 

 bits Peru. 



C. melanochir, Desm. Kuhl. The Black-handed Sagoin. Fur ash- 

 coloured ; posterior part of the back and extremity of the tail 

 of a reddish brown ; anterior hands fuliginous. Inhabits Brazil. 



C. iiifulatiis, Desm, (Callithrix infulata, Kuhl.) Mitred Sagoin. 



