A Serow Killed on the Snow Mountain
The Head of a Serow
In the cylindrical form of their horns the serows are similar to some of the antelopes but in their clumsy build, heavy limbs and stout hoofs as well as in habits they resemble goats. The serow has a long, melancholy-looking face and because of its enormous ears the Chinese in Fukien Province refer to it as the "wild donkey" but in Yün-nan it is called "wild cow."
The specific relationships of the serows are by no means satisfactorily determined. Mr. Pocock, Superintendent of the London Zoölogical Society's Gardens, has recently devoted considerable study to the serows of British India and considers them all to be races of the single species Capricornis sumatrensis. With this opinion I am inclined to agree, although I have not yet had sufficient time in which to thoroughly study the subject in the light of our new material.
These animals differ most strikingly in external coloration, and fall into three groups all of which partake more or less of the characters of each other. Chinese serows usually have the lower legs rusty red, while in Indian races they are whitish, and black in the southern Burma and Malayan forms.
The serows which we killed upon the Snow Mountain can probably be referred to Capricornis sumatrensis milne-edwardsi, those of Fukien obtained by Mr. Caldwell represent the white-maned serow Capricornis sumatrensis argyrochætes and one which I shot in May, 1917, near Teng-yueh, not far from the Burma frontier, is apparently an undescribed form.
Our specimens have brought out the fact that a remarkable individual variation exists in the color of the legs of these animals; this character was considered to be of diagnostic value, and probably is in some degree, but it is by no means as reliable as it was formerly supposed to be.
Two of the serows killed on the Snow Mountain have the lower legs rusty red, while in two others these parts are buff colored. The animals, all males of nearly the same age, were taken on the same mountain, and virtually at the same time. Their skulls exhibit no important differences and there is no reason to believe that they represent anything but an extreme individual variation.
The two specimens obtained by Mr. Caldwell at Yen-ping are even more surprising. The old female is coal black, but the young male is distinctly brownish-black with a chestnut stripe from the mane to the tail along the mid-dorsal line where the hairs of the back form a ridge. The horns of the female are nearly parallel for half their extent and approach each other at the tips; their surfaces are remarkably smooth. The horns of the young male diverge like a V from the skull and are very heavily ridged. The latter character is undoubtedly due to youth.