NASALIS. COLOBUS. 
157 
IMAGINARY SPECIES. 
1. C. AURATUs (Geoff. Ann. Mus. XIX.) is undoubtedly the same as the 
Semnopithocus Pyrrhus of Dr Horsficld. 
2. C. LATiBAUBATUs (Gcoff. Aiii). Mus. XIX.) IS identical with the Sem- 
nopithecus leucoprymnus of Otto. Tliis i.s the Piirple-tiiced Monkey of 
Pennant and Shaiv ; probably also the Broad. toothed Baboon of the 
latter. 
3. C. i-iLEATUS (Geoff. Ann. Mus. XIX.— Desm. Mam. and others) is 
identical with the C. Talapoin of Biiffon. The colours of the specimen 
described by' Geoffrey had become altered by being preserved for a long 
time in alcohol. 
4. C. Ai.BO-crNEUEUs (Desni. Mam. Suppl.) We are assured by M. 
Isidore Geoffroy that no animal was brought from India by MM. Diard 
and Duvaucel, answering to the description of Desmarest, nor does any 
Guenon from that country exist in the collections of the Paris Museum. 
5. C. ATvs. figured by Audohert under the name of L'At.ys, is undoubt- 
edly an Albino variety of some otlier species, of Macacus cynomolgus ac- 
cording to Temniinck (Mon. Mam.), or of Semuopithecus auratus ac- 
cording to Isidore Geoffroy. 
6. C. posiLLUs (Destnoul. in Diet. Class, d’llist. Nut. Art. Guenon) 
rests upon three very young specimens, which have since been proved to 
be merely the young of the C. erythropygus. or Grivet Guenon. 
7. La Guenon couao.NNfiE of Buffbn (Hist. Nat. Suppl. VII. pi. 16) 
is a Macacus, prob.ably M. Sinicus. 
GENUS V. NASALIS.— PROBOSCIS-APES. 
Syn. Nasalis (NASiauu). — Geoff. Ann. Mus. XIX. — Isid. Geoff, in Belang. 
Voy. 
Sem.noi'Hitheol’ES (in part). — Cuv. Reg. Anim. — Teram. Mon. Mam. 
SltllA (in part). — I’isch. Syn. Mam. 
The Proboscis- Apes are included by some Naturalists [among whom 
ie 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. Lp. Nasiqoe oti Kahau. — C uv. Reg. Anim. I. 9k. 
Nasaus I.ARVATOS — Gcoff’. Ann. Mus. XIX Isid. Geoff, in Belang. 
Voy. 
Cebcopitiieciis NASlcns. — Lacepede. — Desm. Mam. 
Skmnopithecds nasicus — F. Cuv. Mam. 
icon. Si.MiA Nasica — Sclircl). Sailgth. pi. 10 B. and 10 C. 
Guenon a long nez Buff. Mist. Nat. Suppl. VII. pi. II and 12. 
Proboscis- Monkey Penn. Quadr. pi. 104 and 105. 
Le Kauau. — Audeb. Sing. 
as the nose, 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 tuited 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 furni.shed with strong canine teeth ; but we are 
without any minute description of the dentition. The body is massive, 
and covered with a reddish-biown, 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 slioulders, 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. iNCURVus (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. 
GENUS VI. COLOBUS.3— THUMBLESS-APES. 
Syn. Certaines Guenons sans pouces.a — C uv. Reg. Anim. I. 93. 
COLOBUS lllig. Prodr. — Geoff. Ann. Mus. 
Les Colobes Tcmm. Mon. Mam. 
SiMlA (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 tlieir dentition, tl.ey exactly resemble tile Solemn- 
Apes ; and tlie pecidiarity of their anterior hands merely arises from tlie 
want of the lust phalanx and nail of tlie tliumh, which is very sliort in 
the genus Semnopitliecus. They hear the same relation to the Apes of 
the Old World as most of the Ateles to the otlier Apes of America. 
SPECIFIC CHARACTERS. 
The Muzzle very short. The Forehead rather prominent. 
The Nose very broad, exces.sively elongated, pierced beneatli with two 
enormous nostrils. 
The Hands pentadactylous ; the anterior long, thumbs short. 
fiiE Nails rather flat, broad and thick on the hinder thumbs. 
The Tail longer than the body. 
The Callositib.s and LiiEEK-pnuciiES always present. 
The Hair ahundant ; yellowish passing to a clear red on the breast, 
”®ck, and arms ; reddish on the back, and upper part of tlie head. 
Inhabits Borneo, and pcrliaps also Cochin-China. 
This Ape lives in Borneo in niinierous troops, which assemble in 
Hie morning and evening on the branches of large trees, near the 
tiiargins of rivers. Kahau is its cry. Its nose is excessively long, 
ttnd projecting in the form of a sloped spatula. 
T Ins clmrncteristic. nasal prominence distingnistios tlie Proboscis- Ape 
Iroir 
five 
fun 
every other maminiferous animal. The nose is between four and 
niches in length, narrow at its extremity, and in the middle there is a 
row, which appears to divide it into two lobes. The nostrils, se- 
parated by a narrow se|)tum, are large, and open horizontally. They are 
! at the very extremity of the nose, which is very much elongated, 
font, so that they do not adjoin the upper lip. The entire face, as well 
1. COLOBUS COMOSUS.— ROYAL TMUMBLESS-APE. 
Syn. Coi.OBUs POLYCOMOs Geoff Ann. Mus. XIX — Desm. Mam. 
SiMiA COMOSA Sliaw, Gen. Zool. 
Atf.les COAIATUS. — Gcoff. Ann. Mus. VII. 273. 
SiMiA POI-YCOMUS. — Fiscli. Syn. Mam. 
Icon. FuLL-BO'i-rOMED Monkey. — Penn. Quadr. pi. 46. 
Guenon a camail. — Buff. Hist. Nat. Suppl. VII. pi. 17. 
Selireb. Saiigtli. pi. 10 D. 
SPECIFIC characters. 
The Hair of the head light yellow mixed witli black, very long, and 
hanging down upon the back and shoulders ; elsewhere black. 
The 'I'ail white. 
Inhabits Sierra Leone. 
This Tluunbless-Apo is known to the Negroes of Sierra Leone by the 
name cX King oflhe Monkeys, apparently from the beauty of its coat, and 
the singular head of hair, resembling a large periwig or a diadem, accord- 
ing to the views of tlie observer. This hair is much esteemed for various 
purposes, chiefly ornamental. The face is black ; the body and limbs are 
furnislicd witli a very short and shining hair of a beanliful 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, 
^ociety)^*^ excellent description of the Proboscis-Ape by the Baron Wurmb, in the Verhandl. van bet Batav. Genootsch. III. 
Colobus, from xoTio^og, mutilated. 
145 (Memoirs of the Batavia 
*0 see describes certain thumbless Guenons (Simia polycomos and Simia ferruginea), of which Tlliger has formed his genus Colobus, hut not having yet been abbs 
Aaron noticing them in the text. M. Temm'mck assures us that they resemble the genus Semnopithecus in respect to their eranium an teeth . — Note of the 
(A""- XIX.) was only aware of the two species described by Pennant. Kuhl (Beitr.) admitted three, one of which is altogether nominal. 
Tecies (1 hut doubted the reality of Colobus ferrugiuens. Tcmmiiick confirmed the existenee of C. ferrugineus ; and finally, Rupp. 11 discovered a third 
> le t escription of which is here presented for the first time to the British reader. 
