CEBUS 101 



occiput blackish brown ; back of neck reddish brown like dorsal region ; 

 long hairs on forehead and sides of head pale brown; arms reddish 

 brown, only a little of the pale yellow so conspicuous on the male 

 appearing near the shoulder; forearms, legs, hands and feet, under 

 parts and tail, like the male. 



Measurements. Male. Total length, 918; tail, 459. Skull : occip- 

 ito-nasal length, 91 ; temporal width, 42 ; palatal length, 32 ; breadth of 

 braincase, 52 ; length of nasals, 19 ; length of upper molar series, 21 ; 

 length of mandible, 55 ; length of lower molar series, 24. 



Mr. Carriker who obtained this species in Venezuela states: 

 "this monkey I found to be by far the most abundant and least 

 wary of the three species in all places visited on the Caura and in 

 northeastern Venezuela. However they do not, as a rule, ascend to 

 any great altitude, preferring the forest along the streams or anywhere 

 in the comparatively low country. Almost invariably they will be seen 

 in small troops of from a half dozen to twenty, very seldom a pair 

 alone. While not as shy as the other species, they are nevertheless far 

 from easy to shoot, and must be taken by surprise, or else they rapidly 

 make their escape through the high tree-tops. They tame easily and 

 make interesting and affectionate pets if not mistreated.^ 



"Rare in the region of El Hacha and Aroa. They live up on the 

 slopes above the valley, descending occasionally to feed on the corn, 

 etc., planted on the lower slopes." 



Cebus libidinosus Spix. 



Cebus libidinosus Spix, Sim. et Vespert. Bras., 1823, p. 5, pi. II ; 

 Fisch., Syn. Mamm., 1829, p. 48 ; Less., Spec. Mamm., 1840, 

 p. 152; Wagn., Schreb., Saugth. Suppl., V, 1855, p. 86; Gray, 

 Cat. Monkeys, Lemurs and Fruit-eating Bats, Brit. Mus., 

 1870, p. 49, var. ? of C. capucinus; Schleg., Mus. Pays-Bas, 

 Simije, 1876, p. 201. 

 Cebus (Calyptrocebus) libidinosus Reichenb., Vollstand. Naturg. 



Affen, 1862, p. 34, pi. VI, figs. 46, 98, 102. 

 Type locality. River Carinainha, tributary of the Rio San Fran- 

 cisco, Province of Minas Geraes. Type, one of two examples in 

 Munich Museum. 



Genl. Char. Hair on head long, upright, probably shows tufts in 

 life. 



Color. Top of head and nape, black; a brown stripe on side of 

 head in front of ears ; temples and space between brown stripe and 

 eye, white ; between stripe and ear yellow ; dorsal region dark yellowish 



