ORDER QUADRUMANA
The monkeys of the Indian Peninsula are restricted to a few groups, of which the principal one is that of the Semnopitheci. These monkeys are distinguished not only by their peculiar black faces, with a ridge of long stiff black hair projecting forwards over the eyebrows, thin slim bodies and long tails, but by the absence of cheek pouches, and the possession of a peculiar sacculated stomach, which, as figured in Cuvier, resembles a bunch of grapes. Jerdon says of this group that, out of five species found on the continent there is only one spread through all the plains of Central and Northern India, and one through the Himalayas, whilst there are three well-marked species in the extreme south of the Peninsula; but then he omits at least four species inhabiting Chittagong, Tenasserim, Arracan, which also belong to the continent of India, though perhaps not to the actual Peninsula. Sir Emerson Tennent, in his 'Natural History of Ceylon,' also mentions and figures three species, of which two are not included in Jerdon's 'Mammals,' though incidentally spoken of. I propose to add the Ceylon Mammalia to the Indian, and therefore shall allude to these further on.
The next group of Indian monkeys is that of the Macaques or Magots, or Monkey Baboons of India, the Lal Bundar of the natives. They have simple stomachs and cheek pouches, which last, I dare say, most of us have noticed who have happened to give two plantains in succession to one of them.
Although numerically the Langurs or Entellus Monkeys form the most important group of the Quadrumana in India, yet the Gibbons (which are not included by Jerdon) rank highest in the scale, though the species are restricted to but three—Hylobates hooluck, H. lar and H. syndactylus. They are superior in formation (that is taking man as the highest development of the form, to which some people take objection, though to my way of thinking there is not much to choose between the highest type of monkey and the lowest of humanity, if we would but look facts straight in the face), and they are also vastly superior in intellect to either the Langurs or the Macaques, though inferior perhaps to the Ourangs.
Which, with the long arms of the Ourangs and the receding forehead of the Chimpanzee, possess the callosities of the true monkeys, but differ from them in having neither tail nor cheek pouches. They are true bipeds on the ground, applying the sole of the foot flatly, not, as Cuvier and others have remarked of the Ourangs, with the outer edge of the sole only, but flat down, as Blyth, who first mentions it, noticed it, with the thumb or big toe widely separated.
NATIVE NAMES.—Hooluck, Hookoo.
HABITAT.—Garo and Khasia Hills, Valley of Assam, and Arracan.
DESCRIPTION.—Males deep black, marked with white across the forehead. Females vary from brownish black to whitish-brown, without, however, the fulvous tint observable in pale specimens of the next species.
"In general they are paler on the crown, back, and outside of limbs, darker in front, and much darker on the cheeks and chin."—Blyth.
SIZE.—About two feet.
I think of all the monkey family this Gibbon makes one of the most interesting pets. It is mild and most docile, and capable of great attachment. Even the adult male has been caught, and within the short space of a month so completely tamed that he would follow and come to a call. One I had for a time, some years ago, was a most engaging little creature. Nothing contented him so much as being allowed to sit by my side with his arm linked through mine, and he would resist any attempt I made to go away. He was extremely clean in his habits, which cannot be said of all the monkey tribe. Soon after he came to me I gave him a piece of blanket to sleep on in his box, but the next morning I found he had rolled it up and made a sort of pillow for his head, so a second piece was given him. He was destined for the Queen's Gardens at Delhi, but unfortunately on his way up he got a chill, and contracted a disease akin to consumption. During his illness he was most carefully tended by my brother, who had a little bed made for him, and the doctor came daily to see the little patient, who gratefully accepted his attentions; but, to their disappointment, he died. The only objection to these monkeys as pets is the power they have of howling, or rather whooping, a piercing and somewhat hysterical "Whoop-poo! whoop-poo! whoop-poo!" for several minutes, till fairly exhausted.
They are very fond of swinging by their long arms, and walk something like a tipsy sailor. A friend, resident on the frontiers of Assam, tells me that the full-grown adult pines and dies in confinement. I think it probable that it may miss a certain amount of insect diet, and would recommend those who cannot let their pets run loose in a garden to give them raw eggs and a little minced meat, and a spider or two occasionally.
In its wild state this Gibbon feeds on leaves, insects, eggs and small birds. Dr. Anderson notices the following as favourite leaves: Moringa pterygosperma (horse-radish tree), Spondias mangifera (amra), Ficus religiosa (the pipal), also Beta vulgaris; and it is specially partial to the Ipomoea reptans (the water convolvulus) and the bright-coloured flowers of the Indian shot (Canna Indica). Of insects it prefers spiders and the Orthoptera; eggs and small birds are also eagerly devoured.
HABITAT.—Arracan, Lower Pegu, Tenasserim, and the Malayan Peninsula.
DESCRIPTION.—"This species is generally recognisable by its pale yellowish, almost white hands and feet, by the grey, almost white, supercilium, whiskers and beard, and by the deep black of the rest of the pelage."—Anderson.
SIZE.—About same as H. hooluck.
It is, however, found in every variety of colour, from black to brownish, and variegated with light-coloured patches, and occasionally of a fulvous white. For a long time I supposed it to be synonymous with H. agilis of Cuvier, or H. variegatus of Temminck, but both Mr. Blyth and Dr. Anderson separate it. Blyth mentions a significant fact in distinguishing the two Indian Gibbons, whatever be their variations of colour, viz.: "H. hooluck has constantly a broad white frontal band either continuous or divided in the middle, while H. lar has invariably white hands and feet, less brightly so in some, and a white ring encircling the visage, which is seldom incomplete."3
H. lar has sometimes the index and middle fingers connected by a web, as in the case of H. syndactylus (a Sumatran species very distinct in other respects). The very closely allied H. agilis has also this peculiarity in occasional specimens. This Gibbon was called "agilis" by Cuvier from its extreme rapidity in springing from branch to branch. Duvaucel says: "The velocity of its movements is wonderful; it escapes like a bird on the wing. Ascending rapidly to the top of a tree, it then seizes a flexible branch, swings itself two or three times to gain the necessary impetus, and then launches itself forward, repeatedly clearing in succession, without effort and without fatigue, spaces of forty feet."
Sir Stamford Raffles writes that it is believed in Sumatra that it is so jealous that if in captivity preference be given to one over another, the neglected one will die of grief; and he found that one he had sickened under similar circumstances and did not recover till his rival (a Siamang, H. syndactylus) was removed.
HABITAT.—Tenasserim Province, Sumatra, Malayan Peninsula.
DESCRIPTION.—A more robust and thick-set animal than the two last; deep, woolly, black fur; no white