4. The P. Priamus inhabits the northern and eastern provinces, and the wooded hills which occur in these portions of the island. In appearance it differs both in size and in colour from the common wanderoo, being larger and more inclined to grey; and in habits it is much less reserved. At Jaffna, and in other parts of the island where the population is comparatively numerous, these monkeys become so familiarised with the presence of man as to exhibit the utmost daring and indifference. A flock of them will take possession of a Palmyra palm; and so effectually can they crouch and conceal themselves among the leaves that, on the slightest alarm, the whole party becomes invisible in an instant. The presence of a dog, however, excites such an irrepressible curiosity that, in order to watch his movements, they never fail to betray themselves. They may be frequently seen congregated on the roof of a native hut: and, some years ago, the child of a European clergyman stationed near Jaffna having been left on the ground by the nurse, was so teased and bitten by them as to cause its death.
The Singhalese have the impression that the remains of a monkey are never to be found in the forest; a belief which they have embodied in the proverb that "he who has seen a white crow, the nest of a paddi bird, a straight coco-nut tree, or a dead monkey, is certain to live for ever." This piece of folk-lore has evidently reached Ceylon from India, where it is believed that persons dwelling on the spot where a hanumân monkey, Semnopithecus entellus, has been killed, will die, that even its bones are unlucky, and that no house erected where they are hid under ground can prosper. Hence when a dwelling is to be built, it is one of the employments of the Jyotish philosophers to ascertain by their science that none such are concealed; and Buchanan observes that "it is, perhaps, owing to this fear of ill-luck that no native will acknowledge his having seen a dead hanumân."[111]
The only other quadrumanous animal found in Ceylon is the little loris[121], which, from its sluggish movements, nocturnal habits, and consequent inaction during the day, has acquired the name of the "Ceylon Sloth."
There are two varieties in the island; one of the ordinary fulvous brown, and another larger, whose fur is entirely black. A specimen of the former was sent to me from Chilaw, on the western coast, and lived for some time at Colombo, feeding on rice, fruit, and vegetables. It was partial to ants and, other insects, and was always eager for milk or the bone of a fowl. The naturally slow motion of its limbs enables the loris to approach its prey so stealthily that it seizes birds before they can be alarmed by its presence. The natives assert that it has been known to strangle the pea-fowl at night, to feast on the brain. During the day the one which I kept was usually asleep in the strange position represented on the last page; its perch firmly grasped with both hands, its back curved into a ball of soft fur, and its head hidden deep between its legs. The singularly-large and intense eyes of the loris have attracted the attention, of the Singhalese, who capture the creature for the purpose of extracting them as charms and love-potions, and this they are said to effect by holding the little animal to the fire till its eyeballs burst. Its Tamil name is thaxangu, or "thin-bodied;" and hence a deformed child or an emaciated person has acquired in the Tamil districts the same epithet. The light-coloured variety of the loris in Ceylon has a spot on its forehead, somewhat resembling the namam, or mark worn by the worshippers of Vishnu; and, from this peculiarity, it is distinguished as the Nama-thavangu.[131]
II. CHEIROPTERA. Bats.—The multitude of bats is one of the features of the evening landscape; they abound in every cave and subterranean passage, in the tunnels on the highways, in the galleries of the fortifications, in the roofs of the bungalows, and the ruins of every temple and building. At sunset they are seen issuing from their diurnal retreats to roam through the twilight in search of crepuscular insects, and as night approaches and the lights in the rooms attract the night-flying lepidoptera, the bats sweep round the dinner-table and carry off their tiny prey within the glitter of the lamps. Including the frugivorous section about sixteen species have been identified in Ceylon; and remarkable varieties of two of these are peculiar to the island. The colours of some of them are as brilliant as the plumage of a bird, bright yellow, deep orange, and a rich ferruginous brown inclining to red.[141]
But of all the bats, the most conspicuous from its size and numbers, and the most interesting from its habits, is the rousette of Ceylon[142];—the "flying fox," as it is called by Europeans, from the similarity to that animal in its head and ears, its bright eyes, and intelligent little face. In its aspect it has nothing of the disagreeable and repulsive look so common amongst the ordinary vespertilionidæ; it likewise differs from them in the want of the nose-leaf, as well as of the tail. In the absence of the latter, its flight is directed by means of a membrane attached to the inner side of each of the hind legs, and kept distended at the lower extremity by a projecting bone, just as a fore-and-aft sail is distended by a "gaff."
In size the body measures from ten to twelve inches in length, but the arms are prolonged, and especially the metacarpal bones and phalanges of the four fingers over which the leathery wings are distended, till the alar expanse measures between four and five feet. Whilst the function of these metamorphosed limbs in sustaining flight entitles them to the designation of "wings," they are endowed with another faculty, the existence of which essentially distinguishes them from the feathery wings of a bird, and vindicates the appropriateness of the term Cheiro-ptera[151], or "winged hands," by which the bats are designated. Over the entire surface of the thin membrane of which they are formed, sentient nerves of the utmost delicacy are distributed, by means of which the animal is enabled during the darkness to direct its motions with security, avoiding objects against contact with which at such times its eyes and other senses would be insufficient to protect it.[152] Spallanzani ascertained the perfection of this faculty by a series of cruel experiments, by which he demonstrated that bats, even after their eyes had been destroyed, and their external organs, of smell and hearing obliterated, were still enabled to direct their flight with unhesitating confidence, avoiding even threads suspended to intercept them. But after ascertaining the fact, Spallanzani was slow to arrive at its origin; and ascribed the surprising power to the existence of some sixth supplementary sense, the enjoyment of which was withheld from other animals. Cuvier, however, dissipated the obscurity by showing the seat of this extraordinary endowment to be in the wings, the superficies of which retains the exquisite sensitiveness to touch that is inherent in the palms of the human hand and the extremities of the fingers, as well as in the feet of some of the mammalia.[153] The face and head of the Pteropus are covered with brownish-grey hairs, the neck and chest are dark ferruginous grey, and the rest of the body brown, inclining to black.