gray; hands, feet, and ears, nearly black; callosities large. Inhabits Malacca and the Sunda Isles.

PLATE IV. 6. H. SYNDACTYLA. The Siamang.-Simia syndactyla, Raff. Trans. Lin. Soc. xiii. p. 241 ; Horsf. Java. Hair black; neck and upper part of the breast naked, and prominent from the size of the laryngeal sacks; first and second finger of lower extremities united to the end of the second phalanx; callosities none. Inhabits Island of Sumatra.

PLATE V.-7. H. AGILIS. The Active Gibbon.-Fred. Cuv. Mammif. Hair clear brown, changing to a shining yellow on the back; white band above the eyes; face bare, in the male blue, in the female yellow; callosities small. Lives in troops, and displays very great agility. Inhabits Sumatra.

GUENONS.

GENUS IV.-Presbytis, EscнSCHOLTZ.

Facial angle 60°; cheek-pouches none; callosities distinct; tail long; arms reaching to the knees.

1. P. MITRULA, the Capped Monkey.-Eschsch. in Kotzeb.
Voy. of Discov. Hair curled, above bluish gray, beneath
grayish white; a black line from the upper part of the ears
across the head; length of the body about 14 foot; tail
long.
Inhabits Sumatra.*

GENUS V.-Colobus, ILLIGER.

Muzzle short; nostrils approximated; tail longer than the body; limbs slender; upper extremities without thumbs.

Neck

1. C. POLYCOMUS, Full-bottomed Monkey.-Geoff. Ann.
du Mus. xix. p. 92; Desm. Mamm. p. 53.
with a mane in the form of a hood, covering the upper part
of the back and shoulders, variegated with black and fawn

*From Griffith's Animal Kingdom.

colour; body deep shining black; tail pure white. Inhabits the forests of Guinea and Sierra Leone. 2. C. FERRUGINOSUS, Bay Monkey.-Desm. Mamm. p. 53; Geoff. Ann. du Mus. xix. p. 92. Bay monkey, Penn. Quad. Hair ferruginous; crown of the head, hands and tail, black. Inhabits Guinea.

3. C. TEMMINCKII, Temminck's Colobus.-Khul. MSS.; Desm. Mamm. p. 53. Upper parts, shoulders, and outer part of the thighs black; belly yellowish red; limbs clear red; face and tail reddish purple; length about 2 feet 8 or 9 inches, including the tail. Native country unknown.

The only specimen known was purchased by M. Temminck, at the sale of Bullock's collection.

GENUS VI.-Nasalis, GEOFFROY.

Muzzle short; facial angle about 50°; the nose unproportionally lengthened; the nostrils at the extremity, on the under side; the body very thick; cheek-pouches and callosities; thumbs of anterior extremities slender; tail longer than the body. PLATE VI.-1. N. LARVATUS, The Proboscis Monkey.-Hair reddish-brown; patched on the lower part of the back with lighter spots; face black. Inhabits Borneo.

2. N. RECURVUS, Turned-up Proboscis Monkey. Nasalis recurvus, Vig. and Horsf. Zool. Journ. xiii. p. 110. Hair reddish-brown, under parts paler; middle of the back and inside of the limbs gray; nose turned up. Inhabits Borneo.

Perhaps the young of N. larvatus.

GENUS VII. Lasiopyga, ILLIger.

Facial angle from 50° to 60°; the muzzle only slightly elongated; face bare; hands longer than the fore-arm; thumbs on the

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anterior extremities short and slender; cheek-pouches; tail long; no callosities; the buttocks fringed with hair.

PLATE VII. 1. L. NEMEA, Cochin-China Monkey.-Pygathrix, Geoff. Ann. du Mus. xix. p. 90. Guenon Douc, Desm. Mamm. 54. Hair of brilliant colours; upper part of the head brown, with a frontal band of deep chestnut; hair of the cheeks very long, dirty white; fore-arms white, extending to the thumbs and fingers, which are black; tail white. Inhabits Cochin-China. (Madagascar, according to Harcourt.)

GENUS VIII. Semnopithecus, CuVIER.

Head round; nose flat; facial angle 45°; limbs long; thumbs of anterior extremities very short; cheek-pouches and naked callosities; tail very long and thin; posterior grinder of the lower jaw with five points; form slender. India and Indian Archipelago. PLATE VIII. 1. S. MELALOPHOs, the Simpai. Fred. Cuv. Mammif. Simia melalophos, Raff. Trans. Lin. Soc. xiii. The face blue; forehead with a black band of long hairs, in the form of a tuft or crest; the hair of the upper parts clear red-brown; beneath, and in the inside of the limbs, tawny and whitish. Inhabits Island of Sumatra.

2. S. MAURUS, Negro Monkey.-Middle-size Black Monkey, Edw. Glean. S. maurus, Horsf. Hair soft and silky, intensely black; the breast, belly, inner surface of extremities and root of the tail, gray; in very old individuals, crown and upper parts tinged with gray. Inhabits Island of Java.

PLATE IX.-3. S. ENTELLUS, the Entellus Monkey. - Entelle, Audeb. Cercopithecus entellus, Geoff. Ann. du Mus., xix. 95. Hair yellowish-white, paler beneath; face and hands black.

Inhabits Bengal.

4. S. PYRRHUS, the Lutung.-Horsf. Java. Hair soft and

silky; above, shining red; beneath, and inside the limbs,

fawn coloured. Inhabits Java. (Allied to Cercopithecus auratus.)

5. S. PRUINOSUS.-Desm. Mamm. Sup. p. 533. Hair black,
mixed with white, without a white spot at the origin of the
tail, as in S. maurus: tail brown. Inhabits Sumatra.
(Allied to S. maurus.)

6. S. COMATUS. Desm. Mamm. Supp. p. 533. Hair above
gray, beneath whitish; tail tipped with white; hair of the
crown black, long, forming an aigrette behind, and conceal-
ing the ears.
Inhabits Sumatra.

GENUS IX. Cercopithecus, GEOFFROY.

The head round; forehead receding; facial angle 50°; no superciliary ridges; nose flat; cheek-pouches and callosities; tail longer than the body. Africa and India,

1. C. AURATUS, Golden Guenon.-Geoff, Ann. du Mus. xix.
p. 93. Desm. Mamm. p. 56. Above, golden yellow;
beneath, paler; black spot upon the knee; hair of the
breast and cheeks long. Inhabits India and Molucca.
2. C. TALAPOIN, the Talapoin Monkey.-Penn, Quad. 206.
Geoff. Ann. du Mus. xix. p. 93,

beneath, yellowish-white; feet black.

Hair above, olive;

Inhabits India, ac

Young, hair

cording to Buffon. (Described from Buffon. Supposed by F. Cuvier to be the young of Cercocebus cynosurus.) 3. C. LATIBARBUS, Purple-faced Bearded Monkey.-Desm. Mamm. p. 57. Guenon à face pourpre, Buff. Simia dentata, Shaw. Adult, hair woolly, black; a large beard extending laterally; tail tufted at the end. entirely red. Native country unknown. 4. C. CEPHUS, Mustache Monkey.-Simia cephus, Linn. Guenon moustac, Desm. Mamm. p. 57. Hair greenishbrown, (according to Geoff. reddish-brown ;) latter half of the tail white; nose and lips blue. Inhabits Guinea, Geoff.

5. C. PILEATUs, Bonneted Monkey.-Simia pileata, Shaw. Guenon couronnée, Desm. Mamm. p. 57. Hair above brownish-yellow; beneath whitish; forehead adorned with long hairs erect in a tuft. Native country unknown. (Allied to Cercocebus sinicus.)

PLATE X.-C. MONA, Varied Monkey.-Simia mona, Linn. Guenon mone, Desm. Mamm. p. 58. Upper part of

the head, bright yellowish-green; hair of the cheeks yellow;
body deep chestnut, a white spot on each buttock. Native
country uncertain, most probably Africa.

7. C. NICTITANS, White-nosed Monkey.-Guenon hocheur,
Desm. Mamm. p. 58. Le hocheur, Audeb. Body black,
sprinkled with greenish-gray; extremities black above;
lower part of the chin white; nose more than usually
long, white. Inhabits the coast of Guinea.
8. C. PETAURISTA, Vaulting Monkey. Simia petaurista,
Linn. Le blanc nez, and ascagne, Audeb. Hair above
reddish, white below; outer part of the extremities green-
ish, inside gray; lower part of the nose white. Inhabits
coast of Guinea.

PLATE XI. 9. C. RUBER, the Red Monkey.-Red monkey, Penn. Guenon patas, Desm. Mamm., p. 59. Above reddish, gray beneath; hair of the cheeks long; a narrow band above the eyes black. Inhabits Senegal. 10. C. DIANA, Diana or Palatine Monkey.-Simia Diana, Linn. Exquina, Margrave. Guenon Diane, Desm. Mamm. p. 60. Hair of a deep chestnut on the back, dark gray on the flanks, with an oblique light line on the thighs; forehead adorned with a white crescent-shaped band; chin and throat white. Inhabits Congo and the Guinea coast. 11. C. ALBOCINEREUS, Grey guenon. Guenon grisblanc, Desm. Mamm. Supp. p. 534. Hair gray above, lower parts whitish; a band of black crosses the forehead; extremities black; tail brown. Inhabits Island of Sumatra.