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Show 500 DR. J. MURIE ON SAIGA TARTARICA. [Julie 9, dition of the inguinal integument, the same subcutaneous glandular apparatus extant. A single description, therefore, will suffice for both. Pallas, it may be remarked, has partially indicated what I shall describe more in detail. 1. There are two small suborbital glandular sacs, the so-called crumen, lachrymal sinus, or tearpit of some authors, which yield a thick whitish or pale-yellow exudation. These are situated in front of the orbit, and slightly below the median transverse line of the eye. In the younger female the small external openings of these were placed | of an inch, and in tbe male 1| inch, in advance of the orbital ring ; but the sinuses or sacs themselves lay in the broadish and moderately excavated infraorbital fossae. 2. Each foot, as in tbe Sheep, possesses an interdigital sac about 1 £ inch in depth, and opening by a narrow constricted aperture at its front and upper part. The orifice is bidden by very short closely placed yellowish hairs, whilst below these the sac is superficially covered by a tuft of much stronger and longer hairs. The secretion derived from these interdigital bags is yellow and of a hardish ceruminous character. 3. O n the anterior aspect, but slightly to the inner side, of each fore knee is a small dermal gland, or a thickening of the cutaneous tissues, covered hy a brownish patch of firm hairs. 4. In the inguinal regions of both sexes bare oblong or lozenge-shaped spaces exist; each of these is 5 inches or more in extreme long diameter. Upon their inner edges in the female the imperfectly developed udders and four teats are situated. There are no pouches or sacculations in the anterior part of these hare spaces, as obtains in Cephalophus dorsalis and some other forms, the skin in the Saiga being dry and nearly void of cuticular secretion ; but at the postinguinal extremities in both sexes of the latter animal there are glandular pores. In the male there is a very marked crescentic skin-fold | inch long and about \ inch deep ; and this interiorly contains abundance of minute pore-like glands and a free secretion. The odour of the secretion is faint and ceruminous. The same portion of the postinguinal space in the young female differed from the male in there being no tegumentary sac or indu-plication of the tissues; but a smooth-surfaced secretory apparatus was present, and from this a moist waxy substance exuded. From what has been detailed above it follows that the true aggregated cutaneous glands of the Saiga Antelope altogether are ten in number. Upon my carefully dissecting and reflecting the skin of the groin beneath these postinguinal pouches or folds, I was surprised to find that they each possessed a retractor-like muscle. This was a small flat narrow fleshy band inserted on the middle of the duplicature of the skin; from this it ran outwards across the posterior end of the abdominal muscles, and appeared to arise beyond the general opening on the surface of the iliacus and between it and the fibrous expansion of the external oblique muscle. The use of this well-defined muscular slip is to draw inwards and |