NASALIS.- 



-COLOBUS. 



157 



IMAGINARY SPTCIES. 



1. C. AHKATDS (Geoflf. Ann. Mus. XIX.) is undoubtedly the same as the 

 Semnopithecus Pyrrhus of Dr Horsfield. 



2. C. LATiiiARBATug (Geoff. Ann. Mus. XIX.) is identical with the Sem- 

 nopithecus leucoprymnus of Otto. This is the Purple-faced Monkey of 

 Pennant and Shaw ; probably also the Broad-toothed Baboon of the 

 latter. 



3. C. FiLEATus (Geoff. Ann. Mus. XIX.— Desm. Mam. and others) is 

 identical with the C. Talapoin of Buffon. The colours of the specimen 

 described by Geoffroy had become altered by being preserved for a long 

 time in alcohol. 



4. C. ALBO-ciNEREUs (Desm. Mam. Suppl.) We are assured by M. 

 Isidore Geoffroy that no animal was brought from India by MM. Uiard 

 and Duvaucel, answering to the description of Desmarest, nor does any 

 Guenou from that country exist in the collections of the Paris Museum. 



5. C. ATYS, figured by Audebert under the name of L'Atys, is undoubt- 

 edly an Albino variety of some other species, of Macacus cynomolgus ac- 

 cording to Temminck (Mon. Mam.), or of Semnopithecus auratus ac- 

 cording to Isidore Geoffroy. 



6. C. pusiLLus (Desmoul. in Diet. Glass. d'Hist. Nat. Art. Guenon) 

 rests upon three very young specimens, which have since been proved to 

 be merely the j'oung of the C. erythropygus, or Grivet Guenon. 



7. La Gur.NON conaoNNliE of Buffon (Hist. Nat. Suppl. VII. pi. 16) 

 is a Macacus, probably M. Sinicus. 



GENUS V. NASALIS.— PROBOSCIS-APES. 



Syn. 



Nasalis (Nasisue) Geoff. Ann. Mus, XIX. — Isid. Geoff, in Belang. 



Voy. 

 Semnophitheql'es (in part). — Cuv. Reg. Anim. — Temm. Mon. Mam. 

 SiMIA (in part). — Fisch. Syn. Mam. 



The Proboscis- Apes are included by some Naturalists [among whom 

 is the Baron Cuvier] with the Solemn- Apes; yet when we consider that, 

 besides their remarkable nasal prominence, they differ from the latter in 

 several important points of their organization, it appears advisable to 

 place them in a group intermediate to the Guenons and Solemn- Apes. 



As yet we are acquainted only with one species.' 



1. NASALIS LARVATUS KAHAU PROBOSCIS-APE. 



Syn. Le Nasique ou Kaiiau. — Cuv. Reg. Anim. I. 9L 



Nasalis larvatus Geoff. Ann. Mus. XIX Isid. Geoff, in Belang. 



Voy. 



Cercopithecus nasicus. — Lacepede. — Desm. Mam. 



Semnopithecus n.asicus — F. Cuv. Mam. 

 Icon. SiMiA Nasica — Schreb. Saiigtli. pi. 10 B. and 10 C. 



Guenon a long nez — Buff. Hist. Nat. Suppl. VII. pi. II and 12. 



Proboscis-Monkey. — Penn. Quadr. pi. lOi and 105. 



Le Kahau Audeb. Siug. 



specific characters. 



The Muzzle very short. The Forehead rather prominent. 



The Nose very broad, excessively elongated, pierced beneatli with two 

 enormous nostrils. 



The Hands pentadactylous ; the anterior long, thumbs short. 



The Nails rather flat, broad and thick on the hinder thumbs. 



The Tail longer than the body. 



The Callosities and Cheek-pouches always present. 



The Hair abundant ; yellowish passing to a clear red on the breast, 

 neck, and arms ; reddish on the back, and upper part of the head. 



Inhabits Borneo, and perhaps also Cochin-China. 



This Ape lives in Borneo in numerous troops, which assemble in 

 the morning and evening on the branches of large trees, near the 

 margins of rivers. Kahau \s \ts my . Its nose is excessively long, 

 and projecting in the form of a sloped spatula. 



This characteristic nasal prominence distinguishes the Proboscis- Ape 

 from every other mammiferous animal. The nose is between four and 

 five inches in length, narrow at its extremity, and in the middle there is a 

 furrow, which appears to divide it into two lobes. The nostrils, se- 

 parated by a narrow septum, are large, and open horizontally. They are 

 placed at the very extremity «f the nose, which is very much elongated 

 in front, so that they do not adjoin the upper lip. The entire face, as well 



as thenose, is wholly destitute of hair, and the skin is of a dark brown, blend- 

 ed with blue and red. The head is round, covered on the top, behind, and 

 on the sides.with a short tufted hair of a reddish-brown. The ears, almost 

 hidden under the hair, are naked, thin, broad, round, and blackish, with a 

 visible slope on their margin. The forehead is low, the eyes rather large, 

 and remote from each other, without eyebrows, and destitute of eye- 

 lashes beneath, while the latter are tolerably long on the upper eye-lid. 

 The mouth is large, and furnished with strong canine teeth ; but we are 

 without any minute description of the dentition. The body is massive, 

 and covered with a reddish-brown, more or less deep upon the back and 

 sides, tending towards orange-red on the breast. It is of a yellow mixed 

 with grey on the abdomen, thighs, and arms. On the chin, and over 

 the neck and shoulders, the hair is much longer than on any other part of 

 the body, and contrasts remarkably with the dark and naked skin of the face. 

 The tail is very long, furnished with short yellowish hairs; the hands and 

 feet are naked within, and'covered externally with short yellowish hairs, 

 mixed with grey. All the nails are black, those of the thumbs are flat, 

 the remainder convex.^ 



The colour of these animals varies with their age. Their height is 

 rather above three feet. 



IMAGINARY species. 



1. N. iNCORVus (Vigors and Horsfield, Zoological Journal, No. 13) 

 rests upon the examination of a single specimen, which would appear 

 to be merely a young individual of N. larvatus. 



THUMBLESS-APES. 



Anim. I. 93. 



GENUS VL COLOBUS 



Syn. Certaines Guenons sans pouces.i — Cuv. Rbl 



Colobus lllig. Prodr. — Geoff. Ann. Mus. 



Les Colobes Temm. Men. Mam. 



SlJUA (in part). — Linn. Gmel Fisch. Syn. Mam. 



GENERIC CHARACTERS. 



The Muzzle short. The Face naked. 



The Anterior Hands tetradactylous, the Thumbs being wanting. 



The Hinder-hands pentadactylous; the thumbs placed very remote 

 from the fingers. 



The Tail long and slender, with a tuft at the end. 



The Callosities and Cheek-pouches always present. 



The Last Molar of the lower jaw with five tubercles. 



Inhabits Africa. 



This genus, now consisting of three species,* is admitted by several 

 Naturalists with some doubt. In respect to the form of their cranium, 

 and the characters of their dentition, they exactly resemble the Solemn- 

 Apes ; and the peculiarity of their anterior hands merely arises from the 

 want of the last phalanx and nail of the thumb, which is very short in 

 the genus Semnopithecus. They bear the same relation to the Apes of 

 the Old World a« most of the Ateles to the other Apes of America. 



1. COLOBUS COMOSUS.— ROYAL THUMBLESS-APE. 



Syn. Colobus POLYCOMOs Geoff. Ann. Mus. XIX — Desm. Mam. 



SiMiA COMOSA Shaw, Gen. Zool. 



Ateles comatus Geoff. Ann. Mus. VII. 273. 



SiMiA polycomus. — Fisch. Syn. Mam. 

 Icon. Full-bottomed Monkey Penn. Quadr. pi. 46. 



Guenon a camail.— Buff. Hist. Nat. Suppl. VIL pi. 17. 



Schreb. SaUgth. pi. 10 D. 



SPECIFIC CHARACTERS. 



The Hair of the head light yellow mixed with black, very long, and 

 hanging down upon the back and shoulders ; elsewhere black- 

 The Tail white. 

 Inhabits Sierra Leone. 



This Thumbless-Ape is known to the Negroes of Sierra Leone by the 

 name of King of the Monkeys, apparently from the beauty of its coat, and 

 the singular head of hair, resembling a large periwig or a diadem, accord- 

 inf to the views of the observer. This hair is much esteemed for various 

 purposes, chiefly ornamental. The face is black ; the body and limbs are 

 furnished with a very short and shining hair of a beautiful black, contrast- 

 ing remarkably with the colour of the crest, which is long and bushy, and 

 of a yellowish tinge mixed with black, and still more so with the tail, of 



' A second species proposed by Vigors and Horsfield in the Zoological Journal, No. 13, is not admitted by other Naturalists. 



2 See an excellent description of the Proboscis-Ape by the Baron Wurmb, in the Verhandl. van bet Batav. Genootsch. HI. p. 145 (Memoirs of the Batavian 

 Society). 



3 Colobus, from xoXo/3of, mutilated. 



* Pennant describes certain thumbless Guenons (Simla polycomos and Simla ferruginea), of which HUger has formed his genus Colobus, but not having yet been able 

 to see them, I avoid noticing them in the text. M. Temminck assures us that thev resemble the genus Semnopithecus in respect to their cranium and teeth — Note of the 

 Baron Cuvier 



Geo£Froy-St.-Hilaire (Ann. Mus. XIX.) was only aware of the two species described by Pennant. Kuhl (Beitr.) admitted three, one of which is altogether nominal. 

 Uesmarest followed Kuhl, but doubted the reahty of Colobus ferrugineus. Temminck confirmed the existence of 0. ferrugineus ; and finally, RuppcU discovered a third 

 species, the description of which is here presented for the first time to the British reader. 

 40 



