QUADRUMANA. 51 
Sim. diana, Lin; Exequima, Marcer.*; Audeb. 4th fam. sec. 2, 
pl. 6, and Buff. Supp. VIT. 20. (The Roloway). Blackish, speck- 
led with white above, beneath white; crupper of a purplish red; face 
black, surrounded with white; a little white beard on the chin. 
Sim. cephus, Lin.; Buff. XIV. 34; Fred. Cuv. 17. ° (The 
Moustache). Ashy-brown; a yellow tuft before each ear; a clear 
blue band, resembling a reversed chevron, on the upper lip. 
S. petaurista, Gm.; Audeb. ib. XIV; Fred. Cuv. 13. (The 
White-nosed Monkey). Black or brown, speckled with white; white 
nose; face black; circumference of the lips and the eyes reddish. 
These last five species, all small, beautifully variegated in colour, 
and of a mild and gentle disposition, are very common in Guinea}. 
SremnopitHecus, Fred. Cuv. 
Differs from the Long-tailed Monkeys, by having an additional small 
tubercle on the last of the inferior molares. They inhabit eastern coun- 
tries, and their long limbs and very long tail give them a very peculiar 
appearance. ‘Their muzzle projects very little more than that of the Gib- 
bons, and, like them, they have callosities on the buttocks. They appear, 
likewise, to have no cheek-pouches; their larynx is furnished with a sac. 
The one longest known is the 
Sim. nemeus, L.; Buff. XIV. 41; Fred. Cuv. pl. 12. Remark- 
able for its lively and varied colouring; body and arms grey; hands, 
thighs, and feet, black; legs of a lively red; the tail and a large tri- 
angular spot upon the loins, white; face orange; he has a black and 
red collar, and tufts of yellow hairs on the sides of the head; inhabits 
Cochin Chinaf. 
Another species.is remarkable for the very extraordinary form of 
the nose—it is the 
S. nasica, Schr.; Buff. Supp. VII. 11 and 12. (The Kahan). 
Yellow tinted with red; nose extremely long and projecting, in the 
form of a sloping spatula. This monkey inhabits Borneo, lives in 
great troops, which assemble morning and evening, on the branches 
of the great trees on the banks of the rivers—its cry kahau. It is 
also said to be found in Cochin China. 
S. entellus, Dufres.; Fred. Cuv. pl. 8 and 9. (The Entellus). 
A light yellowish grey; black hairs on the eye-brows and sides of the 
head, directed forwards. From Upper Bengal. Is one of the spe- 
cies held in veneration by the Brahmins. 
* The figure annexed to the description of the Exquima in Marcgrave is that of 
an Ouarine, and that of the Exquima is joined to the description of the Ouarine or 
Guariba. This transposition has produced many errors in synonymes. 
+ Pennant has described certain Guenons without thumbs, Sim. polycomos and Sim. 
ferruginea, from which Illiger has constructed his genus Colobus, but I have not yet 
been able to see them, and for this reason have not mentioned them. M.'Temminck 
assures us that their head and teeth resemble those of a Semnopithecus. 
+ M. Diard having transmitted to the Museum several Doucs, from Cochin China, 
it has been proved that they have callosities on the buttocks; a fact denied by Buf- 
fon, on account of his having seen but one specimen injured by stuffing. The genus 
Lasiopyga of Uliger must be suppressed, as it is based on this error. 
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