154 
ORDER QUADRUMANA GENUS CERCOPITHECUS. 
give it, when viewed at a certain distance, the appearance of a bright 
green. This tint, so unusual among Mammiferous animals, probably in- 
duced Buffon to apply the term Callithrix (signifying beautiful hair) to 
this animal. 
We know little regarding the habits of the Green Guenons when in the 
wild state, excepting the short notice of Adanson. They keep together 
in troops, most frequently on trees, maintain a profound silence, and 
would pass unnoticed, were it not for the branches which they break and 
throw down on the passenger. In places where Man docs not often 
penetrate, they do not fear him ; and, though some fall down mortally 
wounded, the remainder do not take flight on that account. 
In confinement they are not easily tamed. One individual in the Paris 
Menagerie always continued ferocious. “ Les femmes lui causaient une 
fureur d'une autre espece, qu’il temoignait de la manifere la plus brutale.” 
His voice was a kind of growl, commencing in a grave and ending in an 
acute tone, resembling that of the Baboons, but not so loud. F. Cuvier 
describes it by the syllable grou. Most frequently it remained seated, 
witli the eyes closed. Its colour became deeper in winter, and the hair 
of the breast and belly fell off in large quantities during summer, so as to 
leave them almost bare. 
Its body, though slender, approaches in form to that of the Malbrouck 
Guenon. The head is pyramidal, the muzzle elongated ; the upper part 
of the orbits low in front, projecting greatly just above the nose ; the 
ears large, rounder than in the Malbrouck Guenon. The hair on the 
upper part of the body of a yellowish-green, as already described ; the 
external surface of the limbs more grey, the yellow hairs having nearly 
disappeared. The lower parts of the body, and the internal surfaces of 
the limbs, beneath the cheek, throat, and neck, are of a yellowish white. 
The colour of the back is continued on the upper side of the tail to its 
extremity, which is ornamented by a long pencil of yellow hairs. The 
face, ears, and hands, are black; the cheek-tufts yellowish, with the 
hairs directed backwards, and dispersed so as to form a kind of ruff. The 
skin of the scrotum is greenish, and surrounded with yellow hairs. 
5. CEUCOPITHECUS FAUNUS.— MALBROUCK GUENON. 
Syn. Le Malbbocc. — C uv. Reg. Anim. I. 92. 
Cercohthecus cvxosi'RUS. — Geoff. Ann. Mus. XIX. 
Dog-tailf.u Monkey. — S haw, Gen. Zool. I. 1, p, 32. 
SiMiA Faunus.* — L inn. Gmel. L p. 31. 
SiMiA CYNOSUKOS. — Fisch. Syn. Mam. 22. 
Icon- Malbrouck. — Geoff, et F. Cuv. Hist. Mam. 
Le Callitriche var. A. — Audeb. Sing. — Buff. Hist. Nat. XIV. pi. 29, 
copied in Sebreb. Saiigth. pi. XIV. C. 
Simia Cynosuros Scopoli, Delicia; Flora;, et Fauna: Insubr. I. pi. 19. 
SPECIFIC CH.VBACIERS. 
The Hair greenish-grey above, ash-coloured beneath and on the 
limbs ; no yellow on the tail ; a white band above the eye ; tufts of 
white hair on each side of the face. 
The Face black, flesh-coloured round the eyes. 
The Scrotum bright ultramarine. 
The Callusities bright red. 
Inhabits 
This animal is said to inhabit the forests of Bengal. If this be true, 
which has not yet been satisfactorily proved, it forms a remarkable ex- 
ception to the other Guenons, which are. all confined to Africa. Its agility 
is extri'iiie, but it seldom permits its voice to be heard, which is at best but 
a feeble or shaip cry, or a low growl. The males when young are tolerably 
docile, but become exceedingly unmanageable when arrived at the adult 
period of life ; the females continue mild, and seem susceptible of some 
attachment. The irritability of the males, though excessive, is always 
tempered by a certain degree of caution ; they are fond of attacking an 
enemy from behind with their teeth and nails, darting oft immediately 
before he can turn, but not losing sight of liim so as to prepare for a new 
sallv. They use their hands with much address, seizing the smallest ob- 
jects between the thuinh and first finger, notwithstanding the shortness of 
the former. The rind of fruits and roots is carefully peeled off with their 
teeth, and they smell over every object before tasting it. They diiiik by 
supping up. 
Their ears are similar to ours, but without the helices. “ Les males 
paraissent toujours disposes a I'accoupleraent. Les femelles ont I’ou- 
verture du vagiii tres simple, avec un clitoris fort petit.” In general, it 
would appear that these Guenons are less disposed to breed in confine- 
ment than the Apes of most other genera. The remarkable colour of the 
scrotum is the most striking characteristic of the Malbrouck Guenon. 
Its body, unlike the other Guenons, is strong and muscular ; its head 
tolerably large, and pyramidal ; its muzzle projecting ; and its lips very 
extensible. The upper part of the body is generally of a greenish grey, 
resulting from the mixture of alternate hairs with yellow and black tips ; 
the lower parts of the body and beneath the tail are grey from the mix- 
ture of hairs tipped with white and black. All the hairs are, how- 
ever, grey at their base. The hairs on the sides of the cheeks are very 
long, and directed backwards, forming very prominent cheek-tufts ; the 
muzzle is black, flesh-coloured around the eyes, the latter character being 
more perceptible in the young than in the adults ; the ears and palms of 
the hands are black ; the callosities very red, especially at periodical sea- 
sons; the scrotum very voluminous, of a bright ultramarine, within which 
the penis is almost concealed. 
6. CERCOPITHECUS ERYTHKOPYGUS.^— VERVET GUENON. 
Syn. Le Vervet Cut. Reg. Anim. I. 92. 
Cercoittheccs Pygerytiirzeus Desni. Mam. Suppl. p. 534. 
Simia pygervthra. — Fisch. Syn. Mam. 
CERCOPITHECUS PusiLLUS.- Desmoulin in Diet. Clas. d’HisC Nat. VII. 568. 
Icon. Vervet mai.e. — Geoff, et F. Cuv. Hist Mam. 
SPECirit CHAIIACTEIIS. 
The Hair greyish-green above, white beneath, red around i...‘ anu.s, 
black on the point of the tail. 
The Scrotum greenish, surrounded by white hair. 
Inhabits the Cape of Good Hope. 
This animal differs from the Malbrouck Guenon in having its 
scrotum [greenish] surrounded with white hair, and red hair near 
the anus. 
It possesses many points of general resemblance to the Guenons with 
greenish hair, already described (4) and (5). M. Lalande brought seve- 
ral specimens to Europe irom the Cape of Good Hope, in the forests 
of which he found them very plentiful, without meeting with any of the 
others, which lends to confirm the idea that it forms a distinct species. 
It is found only in the woods remote I'rom the colony. 
Its face and ears are black, flesh-coloured around tne eyes, a very pro- 
minent band of white hair across the forehead, the cheek-tufts white, 
the upper part of the body greyish-green, changing into a grey upon the 
limbs ; the scrotum of a very brilliant gi-een ; the arms surrounded with 
hairs of a deep-red ; all the hands black from the joints of the heels and 
wrists, and the lip of the tail black. 
7. CERCOPITHECUS GRISEO-VIRIDIS GRIVET GUENON. 
Syn. Le Grivet. — Cuv. Reg. Anim. 1. 92. 
CERCOPITHECUS GRISEO-VIRlDIS. — Dcsm. Mam. p. 61. 
SmUA suBviRiuis. — F. Cuv. in Diet, des Sc. Nat. XX. p. 26. — Fisch. 
Syn. Mam. 
Icon. Grivet male Geoff, et F. Cuv. Hist. Mam. 
SPECIFIC CHARACTERS. 
The Hair greenish above, excepting the limbs and tail, which are 
grey ; wliite beneath, also the tufts of the cheeks. 
The Scrotu.m bright green, surrounded with bright yellow hair. 
Inhabits Nubia. 
The green scrotum surrounded with yellow hair serves to dis- 
tinguish this animal from the Malbrouck Guenon. 
It possesses a strong general resemblance to the other Green Guenou* 
in size aud gcneriU proportions. According to Cailliaud, it is found m 
the forests of Nubia. 
The upper parts of its body are of a dingy green, resulting from ainiu- 
lated hairs of dark grey and bright yellow ; ihe hairs cn the thighs are 
similar, but with very little yellow; the hair on the backs of the hand= 
marked with alteinale rings of grey and white. The clieck-tufts, as well 
as a band over the eyes, are white ; the face, the ears, and the palms o 
all the hands, of a violet-black ; the circle round the eyes flesh-coloured. 
There are a few scattered hairs, like bristles, on lh§ superciliary ridgo 
between the eyes. 
It has the savage disposition of all the larger kinds of Guenons, ant 
bears that strong specific affinity to the Malbrouck and Green Gueiio'>=* 
which seems to indicate the transition from the one form to the 
It resembles the Malbrouck in the general colours of the hair, h'R ‘ 
fers Irom it in the shape of the head, which is not so round ; in the cm 
lour of the scrotum, which is of a bright green instead of ultramarine ; 
in that of the hairs surrounding these pans being white in the Malhrou > 
and bright yellow in the Grivet. This appellation seems wholly acC 
dental aud arbitrary, being the name to which the individual in the 1 a 
Menagerie used to answer when called. 
There is a strong general affinity among the Green, Malbrouck, Yer 
and Grivet Guenons, which would constitute them a distinct group- 
1 
It 
The Cercopitheews barhatus of Clusius, which Linnsus quotes as av. examile of his Faunas, is_ 
Erythropygus,_from red, and crv/vi, anus. 
rather an Ooanjeroo than a Mahirouek. — -Vote of the Baron 
