QUADRUMANA. 51 



Sim. (liana, Lin; Exquima, Marcgr.*; Audeb. 4th fam. sec. 2, 

 pi. G, and Buff. Supp. VII. 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. eephus, 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 Guineaf. 



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 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. nema?us, L. ; Buff. XIV. 41 ; Fred. Cuv. pi. 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 China;]:. 



Another species is remarkable for the very extraordinary form of 

 the nose — it is the 



S. nasica, Schr. ; Buff. Supp. VII. 1 1 and 1 2. (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 haJiau. It is 

 also said to be found in Cochin China. 



S. entelhis, Dufres. ; Fred. Cuv. pi. 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 tliat of 

 an Oiiarine, and that of the Exquima is joined to the description of the Ouarine or 

 Guariha. This transposition has produced many errors in synonjanes. 



f Pennant has described certain Guenons mthout 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 lis that their head and teeth resemble those of a Semnopithecus. 



X M. Diard having transmitted to the Museum several Doucs, fi-om 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 stuflRaig. The genus 

 Lasiopyga of Illiger must be suppressed, as it is based on this error, 

 E 2 



