Natural History of the Mammalia of India and Ceylon Part 7

NATIVE NAMES.--_Badul_, Bengali and Mahratti; _Wurbagul_, Hindi; _Toggul bawali_, Canarese; _Sikurayi_, Telegu.

HABITAT.--All through India, Ceylon, and Burmah.

[Figure: The Flying Fox at Home.]

DESCRIPTION.--Head and nape rufous black; neck and shoulders golden yellow (the hair longer); back dark brown; chin dark; rest of body beneath fulvous or rusty brown; interfemoral membrane brownish black.--_Jerdon_.

SIZE.--Length, 12 to 14 inches; extent of wings, 46 to 52 inches.

These bats roost on trees in vast numbers. I have generally found them to prefer tamarinds of large size. Some idea of the extent of these colonies may be gathered from observations by McMaster, who attempted to calculate the number in a colony. He says: "In five minutes a friend and I counted upwards of six hundred as they pa.s.sed over head, _en route_ to their feeding grounds; supposing their nightly exodus to continue for twenty minutes, this would give upwards of two thousand in one roosting place, exclusive of those who took a different direction."

[Figure: Head of _Pteropus medius_.]

Tickell's account of these colonies is most graphic, though Emerson Tennent has also given a most interesting and correct account of their habits. The former writes:--"From the arrival of the first comer until the sun is high above the horizon, a scene of incessant wrangling and contention is enacted among them, as each endeavours to secure a higher and better place, or to eject a neighbour from too close vicinage. In these struggles the bats hook themselves along the branches, scrambling about hand over hand with some speed, biting each other severely, striking out with the long claw of the thumb, shrieking and cackling without intermission. Each new arrival is compelled to fly several times round the tree, being threatened from all points, and, when he eventually hooks on, he has to go through a series of combats, and be probably ejected two or three times before he makes good his tenure." For faithful portraying, no one could improve on this description. These bats are exceeding strong on the wing. I was aware that they went long distances in search of food, but I was not aware of the power they had for sustained flight till the year 1869, when, on my way to England on furlough, I discovered a large flying fox winging his way towards our vessel, which was at that time more than two hundred miles from land. Exhausted, it clung on to the fore-yard arm; and a present of a rupee induced a Lascar to go aloft and seize it, which he did after several attempts. The voracity with which it attacked some plantains showed that it had been for some time deprived of food, probably having been blown off sh.o.r.e by high winds. Hanging head-downwards from its cage, it stuffed the fruit into its cheeks, monkey-fashion, and then seemed to chew it at leisure. When I left the steamer at Suez it remained in the captain's possession, and seemed to be tame and reconciled to its imprisonment, tempered by a surfeit of plantains. In flying over water they frequently dip down to touch the surface. Jerdon was in doubt whether they did this to drink or not, but McMaster feels sure that they do this in order to drink, and that the habit is not peculiar to the _Pteropodidae_, as he has noticed other bats doing the same.

Colonel Sykes states that he "can personally testify that their flesh is delicate and without disagreeable flavour;" and another colonel of my acquaintance once regaled his friends on some flying fox cutlets, which were p.r.o.nounced "not bad." Dr. Day accuses these bats of intemperate habits; drinking the toddy from the earthen pots on the cocoanut trees, and flying home intoxicated. The wild almond is a favourite fruit.

Mr. Rainey, who has been a careful observer of animals for years, states that in Bengal these bats prefer clumps of bamboos for a resting place, and feed much on the fruit of the betel-nut palm when ripe. Another naturalist, Mr. G. Vidal, writes that in Southern India the _P. medius_ feeds chiefly on the green drupe or nut of the Alexandrian laurel (_Calophyllum inophyllum_), the kernels of which contain a strong-smelling green oil on which the bats fatten amazingly; and then they in turn yield, when boiled down, an oil which is recommended as an excellent stimulative application for the hair.

I noticed in Seonee a curious superst.i.tion to the effect that a bone of this bat tied on to the ankle by a cord of black cowhair is a sovereign remedy, according to the natives, for rheumatism in the leg. Tickell states that these bats produce one at a time in March or April, and they continue a fixture on the mother till the end of May or beginning of June.

NO. 32. PTEROPUS LESCHENAULTII (CYNONYCTERIS AMPLEXICAUDATA).

_The Fulvous Fox-Bat_ (_Jerdon's No. 13_).

Dobson places this bat in the sub-group _Cynonycteris_. It seems to differ from _Pteropus_ only, as far as I can see, in having a small distinct tail, though the above-quoted author considers it closely allied to the next genus.

HABITAT.--The Carnatic, Madras and Trichinopoly; stated also procurable at Calcutta and Pondicherry (_Jerdon_); Ceylon (_Kellaart_).

DESCRIPTION.--Fur short and downy; fulvous ashy, or dull light ashy brown colour, denser and paler beneath; the hairs whitish at the base; membranes dark brown.

SIZE.--Length, 5 to 5-1/2 inches; extent of wing, 18 to 20 inches.

More information is required regarding the habits of this bat.

_GENUS CYNOPTERUS_.

This genus has four molars less than the last, a shorter muzzle; the cheek-bones or zygomatic arch more projecting; tongue rather longer and more tapering, and slightly extensile.

Dental formula: Inc., 4/4 or 4/2; can., 1--1/1--1; premolars, 2--2/3--3; molars, 2--2/2--2.

NO. 33. CYNOPTERUS MARGINATUS.

_The Small Fox-Bat_ (_Jerdon's No. 14_).

NATIVE NAME.--_Chamgadili_, Hindi; _Coteekan voulha_, Singhalese.

HABITAT.--India generally, and Ceylon.

[Figure: _Cynopterus marginatus_.]

DESCRIPTION.--General colour fulvous olivaceous, paler beneath and with an ashy tinge; ears with a narrow margin of white (_Jerdon_.) A reddish smear on neck and shoulders of most specimens; membranes dusky brown. Females paler (_Kellaart_).

SIZE.--Length, 4-1/2 to 5-1/2 inches; extent of wing, 17 to 20 inches.

This bat is found all over India; it is frugivorous exclusively, though some of this sub-order are insectivorous. Blyth says he kept some for several weeks; they would take no notice of the buzz of an insect held to them, but are ravenous eaters of fruit, each devouring its own weight at a meal, voiding its food but little changed whilst slowly munching away; of guava it swallows the juice only. Blyth's prisoners were females, and after a time they attracted a male which hovered about them for some days, roosting near them in a dark staircase; he was also caught, with one of the females who had escaped and joined him. Dr. Dobson writes that in three hours one of these bats devoured twice its own weight. This species usually roosts in trees.

NO. 34. MACROGLOSSUS (PTEROPUS) MINIMUS.

_The Tena.s.serim Fox-Bat_.

NATIVE NAME.--_Lowo-a.s.su_ (dog-bat), Javanese.

HABITAT.--The Himalayas, Burmah, Tena.s.serim, and the Indian Archipelago.

DESCRIPTION.--Ears half length of head, narrow and rounded at tip; face abruptly narrowed in front of eyes; muzzle long, narrow, cylindrical; lower jaw slightly projecting; eyes large; tongue very long, last third attenuated, covered with brush-like papillae; interfemoral membrane very narrow, especially at root of tail; fur reddish brown, and very long.

SIZE.--Head and body, 2-3/10 inches.

Like other _Pteropi_ this bat feeds on fruit of every description, but particularly attacks the various cultivated varieties of _Eugenia_ (Jamoon).

_GENUS EONYCTERIS_.

Muzzle long and cylindrical; nostrils scarcely projecting; upper lip with a shallow vertical groove in front; _index finger without a claw_; thumb short; part of the terminal phalanx included in the wing membrane; metacarpal bone of the second finger equal to the index finger in length; tail short and distinct; the base contained in the narrow interfemoral membrane; tongue long, as in _Macroglossus_.

Dent.i.tion: Inc., 4/4; can., 1--1/1--1; premolars, 2--2/2--2; molars, 3--3/3--3.

NO. 35. EONYCTERIS SPELAEA.

HABITAT.--Burmah.

DESCRIPTION.--Head long; muzzle narrow, cylindrical, abruptly narrowed in front of the eyes; nostrils with an intervening emargination, which also pa.s.ses down to the lips; tongue very long and pointed; ears conical, with rounded tips; body clothed with very short and thinly-spread fur of a uniform dark brown colour; the fur on the head extends only as far as the inner corners of the eye, leaving the rest of the face naked; tail half an inch. On each side, and a little behind the a.n.a.l opening, are two small, kidney-shaped subcutaneous glandular bodies.

SIZE.--Head and body, 4 inches; tail, 1/2 inch.

Found in Farm Caves, Moulmein. The absence of the claw on the index finger is specially to be noted.

MICROCHIROPTERA.

SUB-FAMILY VAMPYRIDAE.

_GENUS MEGADERMA_.

Bats with simple or complicated nose-leaves or membranes. The conch of the ear very large, and joined together on the top of the head; tragus large and bifurcated; nasal membranes complicated; no tail; wings remarkably ample. They have four incisors below but none above, the intermaxillaries remaining cartilaginous.