THE CAPUCHINS. 209 
Cebus albus, Geoffr., t.c. p. 142 (albino). 
Cebus flavus, Geofir., Ann. Mus., xix., p. 112. (1812); Kuhl, 
Beitr. Zool., p. 33 (1820); d’Orbig., Voy. Amér. Mérid., 
iv., Mamm., p:-t, pl 3. (1047); schl, Mus. Pays Bas; 
Vil., p. 204 (1876). 
Cebus gracilis, Spix, Sim. et Vespert., Bras., p. 8, pl. 5 (1823, 
young). 
Cebus libidinosus, Spix, t.c. p. 5, pl. 2 (1823). 
Cebus unicolor, Spix, t.c. p. 7, pl. 4 (1823). 
Simia flavia, Schreb., Saugeths, pl. 31B (1840). 
Crbus elecans, Is. Geofir.,.CR., xxxt.,‘p. 875 (1850). 
Catarara branca, Bates, Nat. Amaz., ii., p..100 (1863). 
Cebus pallidus, Gray, Cat. Monkeys Brit. Mus., p. 49 (1870). 
Characters.— Hairs of crown short and reflexed, forming a 
small short crest, separated by a median furrow on each side 
of the dark crown patch. Fur soft; the coronal patch on the 
back of the head small, black or brown; crest black. 
General colour golden fulvous or greyish fulvous; limbs 
and tail dark brown ; beard golden-red. 
Varieties of this species are sometimes entirely fulvous, with 
the forehead white ; others are entirely albino. 
Distribution.— Bolivia. 
IV. THE SMOOTH-HEADED CAPUCHIN. CEBUS MONACHUS. 
Cebus monachus, F. Cuv., Hist. Nat. Mammif., livr. xix. (1820). 
Le Sai a grosse téte, male, F. Cuvier, Joc. cit. 
Cebus xanthocephalus, Spix, Sim. et Vespert., Bras., p. 6, pl. 3 
(1823) ; Gray, Cat. Monkeys Brit. Mus., p. 50 (1870). 
Cebus cucullatus, Spix, t.c. p. 9, pl. 6 (1823). 
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