156 



ORDER QUADRUMANA.— GENUS CERCOPITHECUS. 



12. CERCOPITHECUS PETAURISTA VAULTING GUENON. 



Sjjn. L'AsCAGNE. — Cuv. Reg. Anim. I. 93. 



CERCOPITHECUS PETAURISTA. — Geoff. Ann. Mus. XIX. 93.; — Desm. 

 Mam. p. 39. 



SiMiA PETAURISTA. — Linn. Gmel. I. 35 Fisch. Syn. Mam. 18. 



Vaulting Monkey Shaw, Gen. Zool. I. I, 51. 



Jcoa, Ascagne, i'emelle. — Geoff, et F. Cuv. Hist. Mam. 



Le Blanc-nez Audeb. Sing Menag. du Mus. 



L' Ascagne. — Audeb. Sing, (var.) 



SPECIFIC characters. 



The Hair greyish or greenish-brown above ; grey beneath ; the upper 

 part of the nose blacic ; the lower white ; a white tuft before each ear. 



The Face covered with black hair ; sometimes naked and violet blue ; 

 always flat. 



The Upper Lip with a black moustachio. 



Inhabits the Coast of Guinea. 



This interesting little animal is one of the smallest and most docile 

 species of the genus. It is at once recognised by the white patch on 

 its nose, consisting of smooth, short, and closely set hairs. It is hvely, 

 and active in its manners, and generally good-tempered in its disposition. 

 A specimen in the Gardens of the Zoological Society of London was by 

 no means familiar, appearing particularly anxious to conceal its face, cry- 

 in" out and kicking with all its might when handled for the purpose of 

 examination. 



The head is round ; the ears large ; the hair of the forehead and cheeks 

 rather short. The top of the head, the upper part of the neck, the back, 

 the sides, and the external surfaces of the limbs, are covered with hair of a 

 dark brown, sometimes withyellow and grey intermixed; thelips nakedand 

 brown, covered with scattered hairs ; the root of the nose between the 

 eyes black ; a white spot upon the nose, formed of very thick and short 

 hairs, cut off horizontally on its upper part, and bordered beneath by 

 the nostrils. The under part of the neck and the sides of the head are 

 white, sometimes tinged with yellowish, which is prolonged towards the 

 breast and belly, where a reddish tinge sometimes prevails. The inner 

 surfaces of the Umbs are of a whitish-grey. The hinder limbs and hands 

 are more grey than those before, and without any greenish tinge. The 

 tail is of a dirty white beneath, separated by a Hne from the greenish- 

 brown of the upper part ; the anterior hands are black. Its usual length 

 is from ten to twelve inches, and that of the tail is usually 13 to 18 inches, 

 though it commonly wants some of its vertebrae. 



There is a variety of this species with the face naked and of a blueish- 

 violet, figured by Audebert under the name of L'Ascagne. 



13. CERCOPITHECUS NICTITANS — WINKING GUENON. 



Syn. Le Hocheur. — Cuv. Reg. Anim. I. 93. 



CERCOPITHECUS NiCTiTANS.-Geoff. Ann. Mus. XIX. 9o.-Desm. Mam. 38. 



SiMiA NICTITANS. — Linn. Gmel. I. 33. — Fisch. Syn. Mam. 18. 



Winking Monkey Penn. Quadr. and Shaw, Gen. Zool. 



Icon. Le Hocheur Audeb. Sing. 



Hocheur— GeoiF. et F. Cuv. Hist. Mam. 



GCENONANEZ BLANC PRO-EMINENT.- Buff. Hist. Nat. Suppl. VII. pi. 18. 



SPECIFIC CHARACTERS. 



The Hair black or brown, speckled with white. 



The Nose prominent and white, in the middle of a blueish-black face. 



Inhabits Guinea. 



In respect to its form, proportions, habits, and disposition, this Guenon 

 approximates nearly to the Spotted Guenon (10) already described. 



The Winking Guenon is about eighteen inches in length, and the tail 

 twenty-eight. The naked parts of the face and ears are blueish-black, 

 the eyehds flesh-coloured, the hands entirely black, and the skin of the 

 body white, slightly tinged with black. On the naked parts of the face 

 only a few isolated dark hairs are to be seen. But the nose is entirely 

 covered with short and thick hair, black between the eyes, and of a fine 

 white throughout the rest of its length. The head and upper parts of 

 the body, as well as the cheek-tufts, are black, speckled with yellowish 

 hairs. The sides are black, speckled with white ; the breast brownish- 

 white. The neck, Hmbs, and tail, are entirely black, and a black line 

 separates the cheek-tufts from the rest of the face. On the lower jaw, 

 on the inner surface of the thighs, and under the arms, the hair is grey. 

 These colours are formed for the most part by hairs which are grey at 

 their base, and annulated with black and yellow, or black and white through 

 the remainder of their length. 



These last five species (9, 10, 11, 12, and 13) are small, and 

 prettily varied in their colours. They are very mild in their man- 

 ners, and are comnion in Guinea. 



14.. CERCOPITHECUS DIADEMATUS DIADEM GUENON. 



Si/n. Le Gue.non a diademe.— Isid. Geoff, in Belang. Voy. 



SiMIA LEUCAJIPYX — -Fisch. Syn. Mam. 



Siaha Diana — Desmoulins in Diet. Clas. d'Hist. Nat. VII. 363. 

 Icon. Diane femelle. — Geoff, et ¥. Cuv. Hist. Mam. 



SPECIFIC CHARACTERS. 



The Hair of the body and cheeks greenish-grey, speckled with black ; 

 a whitish band like a crescent across the forehead ; the tail sjieckled with 



white ; elsewhere black. 



Inhabits the Western Coast of Africa. 



This Guenon was figured and described by M. Fred. Cuvier as a variety 

 of the C. Diana. It is, however, very different from the Spotted Guenon 

 (10), as maybe readily perceived on comparing their descriptions. 



A specimen of this animal lived for many years at the Paris Menaferie. 

 On its first arrival, the upper part of the neck, shoulders, arms, fore- 

 arms, neck, breast, belly^ and tail, were uniformly black, but not of so 

 deep a tint as in the lower parts of the body ; the back and sides were ' 

 speckled with black and white, the hairs having small alternate rinfs of 

 black and white. The cheek-tufts were speckled also with black and 

 white, and a slight tinge of yellow might be remarked in the white band, 

 shaped like an inverted crescent upon the forehead, just above the eyes. 

 Yellow hairs could be discovered only under the callosities, and very few 

 in number. The entire face was of a violet colour, of which the blue 

 predominated upon the cheeks, while the red seemed concentrated upon 

 tlie muzzle and eyelids. The hands were entirely black, and the eyes of 

 a brownish-yellow. In the course of a few years, the general distribution 

 of these colours did not change, but the white rings of the hairs on the 

 back became yellow, and this colour had increased upon the cheek-tufts. 

 The hair which covered the internal surface of the thighs became varied 

 with grey and white rings, which gave these parts a mild grey appear- 

 ance, and the hairs of the tail were covered with similar rings, but the 

 grey had almost become black. The entire coat of the animal was very 

 thick on the upper part, and thin beneath, where the skin, as well as on 

 the remainder of the body, had a violet tinge. 



13. CERCOPITHECUS PYRRHONOTUS EHRENBERG'S 



GUENON. 



Syn. et Icon. Le Nisnas male. — Valenciennes in F. Cuv. et Geoff. Hist. 

 Mam. 

 Der Nisnas Ehrenb Symb. ' I. pi. X. 



SPECIFIC CHARACTERS. 



The Hair bright red above ; white beneath, and on the outside of the 

 limbs. 



The Face entirely black. 

 The Scrotum bright green. 

 Inhabits Abyssinia. 



This new species was recently discovered by M. Ehrenberg in Abys- 

 sinia, and brought to the Royal Prussian Menagerie, near Potsdam. It 

 is known to the inhabitants of Darfoor by the name of Nisnas, and has 

 many relations to the Red Guenon. It appears, however, to be more 

 robust, its muzzle is broader and more obtuse, the tail longer, and the 

 face entirely black, while the Red Guenon (I) is black only on the nose. 



It is of a fine brick-red colour upon the body, on the arms, the anterior 

 part of the thighs, and on the tail. This hue becomes feeble, and passes 

 into a straw-colour on the occiput ; the forehead is rather of a deeper red 

 than the back ; the cheets white ; the naked portion of the face is black- 

 ish ; the fore-arms, legs, and the hinder parts of the thighs, of a pure 

 white ; the palms of all the hands black. 



DOUBTFUL species. 



1. C. BAKBATUS of Clusius, Exot. p. 371, described by Linn. (Syst. 

 Nat. I. p. 36), is an obscure species, by some referred to C. Diana. It 

 is merely said to be black and brown above, white beneath, the beard 

 white and ending in a point ; the tail ending in a tuft. 



2. C. hirCina Shaw, Gen. Zool. I. p. 38. This is the Goat Mon- 

 key of Pennant, Quadr. p. 212, described with a blue naked face ribbed 

 obliquely, a long beard hke that of a Goat ; the whole body and limbs 

 deep brown ; the tail long, from a specimen said to be in the British 

 Museum. 



3. C. Johnii Fisch. Syn. Mam. p. 23. The hair of a shining black, 



and bristly, the head grejish-brown. The hairs of the head very spinous, 

 giving the animal a peculiar aspect. It is said to come from Tellichery, 

 in the East Indies. (John. Beschreib. einger Affenarten in Neuen Schrif- 

 ten der Gesellsch. Naturf. Freunde I. p. 215.) 



1 Ehrenb. Sy:*ib. — Symbolae Physicje, seu Icones et Descriptiones Corpovum Katuralium ex Itineribus per Africam Borealem "Et Asiam Occidentalem, a C. G. 

 Ehrenberg. Beroliui, 1828. 



