62 MAMMALIA. 
colour, and of a mild and gentle disposition, are very common 
in Guinea.(1) 
SemnopiTHEcus, Fred. Cuv. 
Differs from the Long-tailed Monkeys, by having an additional 
small tubercle on the last of the inferior molares. They inhabit 
eastern countries, and their long limbs and very long tail give them 
a very peculiar appearance. ‘Their muzzle projects very little more 
than that of the Gibbons, and like them, they have callosities on the 
buttocks. They appear, likewise, to have no cheek-pouches ; their 
larnyx is furnished with a sac. The one longest known is the 
Sim. nemzus, L.; Buff. XIV, 413 Fred. Cuv. pl. 12. Re- 
markable for its lively and varied colouring ; body and arms 
grey 3 hands, thighs and feet black; legs of a lively red; the 
tail and.a large triangular 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 China.(2) 
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 Kahau.) 
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 is kahau. It is also said to be found in Cochin China. 
S. entellus, Dufres.; Fred. Cuy. pl. 8 and 9., (The Entel- 
lus.) A light yellowish grey; black hairs on the. eye- -brows a 
and sides of the head, directed forwards. From Upper Bengal. 
Is one of the species held in veneration by the Brahmins. 
S. melalophos, Raff.; F. C. pl. 7. (The Simpai.) © Fur of ° 
‘a yery lively red; beneath white; face blue; a crest of peor 2 
hairs reaching from one ear to the other. ” 
S. comata, Desm.; S. cristata, Raff.; Fr. Cuv. pl. 2. Presbitis r 
mitrata, Kotzeb. (The Croo.) Fine ash colour below, and the 
~ ae % 
(1) Pennant has described certain Guenons without thumbs, Sim. Balsa 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. 
(2) M. Diard having transmitted to the Museum several Doucs from Cochin Chi- 
na, it has been proved that they have callosities on the buttocks; a fact denied 
by. Buffon, on account of his having seen but one specimen injured by stuffing. 
The genus Lasiopyga of Mliger must consequently be suppressed, as if is based on 
this error. 
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