CEBUS 111 



brownish black ; limbs, hands and feet, very dark mummy brown ; 

 entire upper parts mummy brown ; side of limbs black ; chest yellow- 

 ish ; under parts ochraceous tipped with brownish black ; tail black. 

 Tufts on head thick, but are flat on the head. 



This is a dark species varying from almost bbck to a dark mummy 

 brown. One of its prominent characters is the long hair on the front 

 and sides of the head which stand up more like ridges than tufts, the 

 hairs on the center of the head being much shorter thus creating a 

 valley between the high sides. The under parts vary also, some being 

 quite pale beneath, others a rich ochraceous, and this coloring is appar- 

 ently independent of age or sex. 



E. Geoffroy first called this species Simla cirrifer and afterward 

 renamed it, supposing his specimen was distinct, Cebus nigcr, and 

 Schlegel and others have adopted the latter name. According, how- 

 ever, to the rule that priority is given to the name first cited in a volume 

 CIRRIFER takes precedence by one page, and niger becomes a synonym. 

 The type of C. niger unfortunately is not in the Paris Museum, and 

 nothing is known about it. 



The type of C. cirrifer is in good condition and less faded than 

 many of the other examples. It has also a more reddish tinge, but the 

 species is quite variable in its coloring and ranges from mummy brown 

 to nearly black on the upper parts. The type was obtained from the 

 "Cabinet de Lisbonne" in 1808, and considering its great age is well 

 preserved. It bears the statement beneath the stand, "type de I'espece," 

 and I have no doubt that it is the specimen originally described. 

 The skull is in the specimen. 



Bates says of this species (1. c.) which he calls macaco prego, that 

 it is a "most impudent thief ; it destroys more than it eats by its ran- 

 dom, hasty way of plucking and breaking the fruits, and when about 

 to return to the forest, carries away all it can in its hands or under its 

 arms." He also says it is much quieter and better tempered than the 

 Caiarara, C. albifrons, and is full of tricks, but these are generally of 

 a playful character. 



Cebus crassiceps Pucheran. 



Cebus crassiceps Puch., Rev. Zool., 1857, p. 343. 



Cebus (Eucebus) crassipes ! Reichenb.. Vollstand. Naturg. Affen. 



1862, p. 47, unfigured. 

 Type locality. Unknown. 

 Geogr. Distr. Rio Negro, (Natterer).? Type in Paris Museum. 



