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Mouse Deer. (From Sir Emerson Tennant's 'Ceylon,' by permission of Messrs. Longmans.) |
DESCRIPTION.—"Above olivaceous, mixed with yellow grey; white below; sides of the body with yellowish-white lines formed of interrupted spots, the upper rows of which are joined to those of the opposite side by some transverse spots; ears reddish-brown" (Jerdon). The colour however varies; some are darker than others.
SIZE.—Length, 22 to 23 inches; tail, 1½ inches; height, 10 to 12 inches. Weight, 5 to 6 lbs.
The above measurements and weight are taken from Jerdon. Professor Garrod (Cassell's Nat. His.) gives eighteen inches for length and eight inches for height, which is nearer the size of those I have kept in confinement; but mine were young animals. They are timid and delicate, but become very tame, and I have had them running loose about the house. They trip about most daintily on the tips of their toes, and look as if a puff of wind would blow them away.
They are said to rut in June and July, and bring forth two young about the end of the rainy season.
This name, which is derived from the Greek [Greek: túlos], a swelling, pad, or knot, and [Greek: poús], a foot, is applied to the camels and llamas, whose feet are composed of toes protected by cushion-like soles, and not by a horny covering like those of the Artiodactyli generally. The foot of the camel consists of two toes tipped by small nails, and protected by soft pads which spread out laterally when pressed on the ground. The two centre metacarpal bones are fused into one cannon bone, and the phalanges of the outer and inner digits which are more or less traceable in all the other families of the Artiodactyli are entirely absent.
The dentition of the camel too is somewhat different from the rest of the Ruminantia, for in the front of the upper jaw there are two teeth placed laterally, one on each side, whereas in all other ruminating animals there are no cutting teeth in the upper jaw—only a hard pad, on which the lower teeth are pressed in the act of tearing off herbage.
The stomach of the camel is the third peculiarity which distinguishes it. The psalterium or manyplies is wanting. The abomasum or "reed" is of great length, and the rumen or paunch is lined with cells, deep and narrow, like those of a honeycomb, closed by a membrane, the orifice of which is at the control of the animal. These cells are for the purpose of storing water, of which the stomach when fully distended will hold about six quarts. The second stomach or reticulum is also deeply grooved.