178 



ORDER QUADRUMANA.— GENUS CEBUS. 



acteristicof the species, we have had an opportunity of ascertaining from 

 a living specimen, in the collection now forming for the Zoological Society 

 of Edinburgh. The tail of our Cebus hypoleucus is entirely covered with 

 hair, and no trace of a callosity is visible on any part. 



All the movements of this animal are exceedingly brisk and lively. It 

 is also very gentle and intelligent; its eye too is quick, so that it watches 

 all one's gestures, and appears to comprehend them ; nay, it almost seems 

 to read one's thoughts. 



5. CEBUS CHRYSOPUS GOLDEN-LIMBED WEEPER. 



Si/n. 

 Icon, 



Ceeus chrysopes F. 



Sajou a pieds dobes.- 



Cuv. 



-F. Cuv. et Geoff. Hist. Mam. 



SPECIFIC CHARACTERS. 



The Hair dusky brown above, white beneath ; a white circle round 

 the face ; bright golden yellow upon the limbs. 



The Face and Ears brown. The Hands bluish-grey. 



The Tail bushy ; dusky brown towards the base, elsewhere yellowish- 

 white. 



Inhabits 



The height and proportions of this Weeper, for a knowledge of which 

 we are indebted to M. Frederic Cuvier, do not differ materially from those 

 already described. Its head is very large and round ; the face is naked, 

 and rather brown, and surrounded by a broad circle of white hairs, which 

 covering the forehead and cheeks as far as the ears on both sides, meet 

 beneath the lower jaw. The remainder of the head is of a dusky brown, 

 and this colour extends along the upper part of the back; the sides of 

 the body and shoulders are somewhat lighter, while the neck, breast, 

 belly, and the inner surfaces of the thighs, ate white. The tail near its 

 origin is, on the upper surface, of the same colour as the back, elsewhere 

 it is yellowish-white. All the limbs are of a bright golden yellow. The 

 skin of the fingers and palms of all the hands is bluish, and the ears are 

 of the same colour as the face. The hairs are thick, soft, and very silky, 

 on all the upper parts of the body, but more scanty beneath, especially 

 on the abdomen ; the tail is very bushy. 



M. Cuvier informs us that he had an opportunity of studying the habits 

 of this animal only for a short time; and that its dispositions served to 

 correspond with those of the other Weepers. It exhibited the same pe- 

 tulance and caprice : its voice was something like a sliglit whistle, during 

 its joy ; and when alarmed or in wrath, its cry was sharp and rough. 



Si/n. 



loo. 



6. CEBUS ALBIFRONS.— WHITE-FRONTED WEEPER. 



SrMiA ALBIFRONS ("OuAVAPAVi). — Humb. Obs. Zool. p. 323 and 356. 

 Cebqs ALBIFRONS Geoflf. Ann. Mus. XIX. — Desm. Mam Fisch. 



Syn. Mam. 



SPECIFIC characters. 



The Hair dark grey above, lighter beneath ; the top of the head greyish- 

 black ; limbs of a yellowish-brown. 



The Face bluish-grey. The Forehead and Orbits pure white. 

 Inhabits the Banks of the Orinoco. 



This Weeper- Monkey is only known to us from the description of the 

 Baron Humboldt. It inhabits the forests near the Cataracts of the Orinoco, 

 is mild, active, and not so noisy as its congeners in that locality. Num- 

 bers of them are found together in troops. At Maypures, M. Humboldt 

 found a domesticated individual, which every morning cauglit a Pig, and 

 mounting on its back, rode during the whole day over the savannah 

 which surrounded the cabins of its Indian masters. The same individual 

 was likewise in the habit of riding on the back of a Cat whicli had been 

 brought up along with it in the house of the missionary of Maypures, 

 while puss sufl'ered patiently the petulance of her more intelligent com- 

 panion. 



The White-fronted Weeper, or Ouavapavi of the Cataracts, may be 

 distinguished at once by the contrast between the pure white of the fore- 

 head and orbits, with the bluish-grey of the remainder of the face. Its 

 head is in the form of a greatly elongated oval. The hair of the body is 

 dark grey, lighter towards the breast and belly, but darker towaids the 

 limbs, where it becomes of a yellowish-brown. The top of the head is of 

 a grey approaching to black, forming a cowl ; a greyish streak extends to- 

 wards the nose along the centre of the forehead; the eyelashes are of a 

 very dark grey. The eyes are large, brown, and very vivid ; the ears have 

 a margin, and are covered with hair ; the tail is nearly as long as the body, 

 ash-coloured above, whitish beneath, and of a dark brown at the point, 

 which has no callosity. The nails aie all rounded, and very slightly con- 

 vex. A stripe of very dark grey extends along the dorsal hne. 



7. CEBUS FULVUS — FULVOUS WEEPER. 



Syn. Cebus fulvus. — Desm. Mam. 



Cebus flavus Geoff. Ann. Mus. XIX C. aleus lb. 



Icon. SiMiA FLAVA. — Schreb. Saiiglh. pi. 31. B. 



Cebus fulvus (var.) — D'Orb.' Voy. pi. 3 (Mammiferes). 



Cebus unicolor. — Spix, Sim. et Vespert. Bras. pi. 4. 



specific characters. 



The Hair entirely yellow or brownish-yellow, deeper on the top of the 

 head. 



The Face and Hands dark violet-grey. 



Inhabits Brazil. 



The Yellow Weeper was first noticed by Marcgravius under the Dame 

 of Caitaia (Bras. 227). Its body is robust, the head large and round, 

 while the face is shortened. The colour of its hair is a uniform clear 

 brown or brownish-yellow, becoming deeper along the centre of the back, 

 and especially on the top of the head, but assuming a greyer tint towards 

 the limba and tail. The ears are short and naked ; the face is of a dark 

 violet-grey ; the eyes light brown ; the tail is thick, and nearly as long as 

 the body ; the nails are yellow. This description is taken from a male, 

 found by M. Spix in the forests of Teffe, a branch of the Rio Solimoens. 



M. D'Orbigny has lately published the figure of a Fulvous Weeper 

 much brighter in its colour than the C. unicolor of Spix, but its description 

 has not yet appeared. The Cebus albus of M. Geoffroy is an Albino 

 variety of this species. 



8. CEBUS ROBUSTUS GREATER WEEPER. 



Syn. Der bbaune Mico Pr. Max. Beitr. 



Cebus robustus Kuhl. Beitr. — Desm. Mam. 



Icon. Cebus robustus Pr. Max. Abbild. 



Cebus macrocephalus. — Spix, Sim. et Vespert. Bras, pi, 1. 



specific characters. 



, The Hair of the head almost black ; the limbs and tail brownish-black; 

 elsewhere reddish-chestnut brown. 



The Face grey flesh-colour. The Hands violet-grey. 



Inhabits Brazil. 



This animal, as its specific name denotes, is strong and muscular, es- 

 pecially in the limbs and tail, and very thickly covered with hair. Its 

 body is thick and round, the face is broad, greyish flesh-coloured, and 

 scantily covered with hair. On the top of the head, a small tuft appears 

 slightly elevated. The head is black; the hands, the inner surface of the 

 limbs, the fore-arms, the lower part of the legs, and the tail, are of a glossy 

 brownish-black ; the whole body is thickly covered with long, soft, and 

 shining hairs of a reddish-chestnut brown, which, however, are grey at 

 their roots, and the belly is but scantily covered. The face often becomes 

 surrounded with grey hairs through age. 



The Greater Weeper is common in Brazil, but has not been found to 

 the South of the Rio Doce. The females often have a yellowish-red 

 band across the shoulder. Their cry is very similar to that of the Com- 

 mon Horned Weeper. 



9. CEBUS XANTHOSTERNUS YELLOW-BREASTED 



WEEPER. 



Syn. Deb gelbbrustige Affe. — Pr. Max. Beitr. 



Cebus xanthosternus Kuhl. Beitr Desm. Mam. 



Cebus variegatus (^young) — Geoff. Ann. Mus. XIX. 

 SiMiA VARIEGATA. — Humb. Obs. Zool. p. 336. 

 Icon. Cebus xanthosternus. — Pr. Max. Abbild. 



Cebus xanihocephalus (fern.) — Spix, Sim. et Vespert. Bras. pL 3. 



(young). 

 Le Sai a grosse tete (C. Monachus). — F. Cuv. et Geo£f. Hist. Mam. 

 (young). 



SPECIFIC CHARACTERS. 



The Hair on the top of the head, back of the neck, and tail, black ; 

 arms and legs brownish-black ; breast, neck, belly, and upper-arms, red- 

 dish-yellow ; the back brown. 



The Face and Hands dark violet-grey. 



Inhabits Brazil. 



The Yellow-breasted Weepers bear much similarity to the species just 

 described. They are found in great numbers in the forests near Rio Ja- 

 neiro, whence they make excursions upon the plantations of maize, oranges, 

 and other fruits. In the Cebus xanthocephalus of Spix, tlie head and 

 back of the neck are of the same colour as the breast, and in the Cebus 



1 D'Okb. Vor — Voyage dans I'Amerique Meridionale, execute dans le cours des annees 1826 a 1833, par M. Alcide D. D'Orbigny. Paris, 1834, et seq. 



