OCR Text |
Show 1875.] PROF. W. H. FLOWER ON THE MUSK-DEER. 173 lobule, connected with the rest of the lobe by a narrow neck arising from its right anterior corner and overhanging the portal fissure. The caudate lobe is narrow, tongue-shaped, with its pointed tip extending just beyond the border of the right lobe. There is no cystic fissure on the edge of the lobe, but a very well-marked fossa on its surface, in which lies a wide pyriform gall-bladder, the form of which and the arrangement of the hepatic and cystic ducts are shown in the figure. The common bile-duct, after a course of 2 inches, passes, somewhat dilated, for % inch through the intestinal wall and opens by a wide aperture guarded by a semilunar fold*. The spleen is attached to the left side of the paunch, close to the cardiac orifice. It is much flattened, 3|" long and 2" broad, obtusely pointed at its upper and truncated at its lower endf. The kidneys are simple and smooth externally. The right kidney is placed so much in advance of the left that its hinder end is on a level with the anterior end of the former. It is also slightly larger than the left, and more regularly kidney-shaped and flatter. The left is thicker from before backwards, narrow at the front end. The dimensions of the right kidney are-length 1"*85, breadth at middle l"*2, thickness 0"*95 ; of the left-length 1*75", breadth at Aiiddle 1"*1, thickness from before backwards l"*l. The suprarenal bodies are close together, the right being in contact with the corresponding kidney, lying on its inner border between the anterior extremity and the hilus, the left being ^ inch in advance of the left kidney. Each body is flattened, oval, or somewhat reniform, about 0"*5 long and 0"*3 broad; the left slightly larger than the rightj. The ovaries are small, flattened, pisiform bodies, 0"*25 in greatest diameter. The vagina and uterus have the usual characters seen in unimpregnated female Ruminants §. * The liver of the Pudu is slightly smaller than that of Moschus ; it is more extended transversely, and differs mainly in the greater size and more quadrate form of the caudate lobe, the total absence of any pedunculated Spigelian lobule (as in most if not all other Deer), and the absence of a gall-bladder. There is no suspensory ligament. t The spleen of the Pudu is much flattened and of nearly circular outline, though rather narrower and thicker at the upper than the lower end. Its diameter averages 3 inches. | The kidneys and suprarenal bodies of the Pudu closely resemble those of the Musk in form and situation. § According to Pallas, tbe male Musk has Cowper's glands, and a small filiform termination (6 lines in length) to the glans penis. In the Pudu the vasa deferentia are enlarged and flattened for the last inch of their course, attaining a width of a quarter of an inch. The prostate consists of two nearly globular lobes, each of about the size of peas, and a smaller middle lobe placed at the union of the vasa deferentia. Tbe walls of the " membranous urethra " are very thick. Contrary to what obtains in Deer generally, there is a pair of Cowper's glands with a thick muscular covering, also about the size of peas, but somewhat flattened and triangular in outline. The penis is large and thick, and the glans fleshy and conical, without any terminal prolongation. It m a y be mentioned that in Hyomoschus, Cowper's glands are well developed. the penis is long and slender, and, as in Pigs, has a spiral or corkscrew-like termination. |