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Show 172 PROF. W. H. FLOWER ON THE MUSK-DEER. [Mar. 16, band to within an inch of its termination. The attached border of the colon immediately beyond the ileo-caecal valve has an oval dilatation, 0"*8 in length and 0"*6 in breadth, with thickened glandular walls, which Pallas compares to the similar but more marked glandular dilatation in the Leporida, and which, as he says, he has observed in no other ruminant*. The pancreas is flat, broad, of irregular outline, and of loose texture. Fig. 10. Under surface of liver, half natural size. L, left lobe; R. right lobe; S, Spigelian lobule; C, caudate lobe; VC, vena cava; VP, vena porta7*; tr, gall-bladder; U, umbilical fissure. The liver (fig. 10) presents the usual simple form of that of the Ruminants*)*. Its general outline is an irregular oval, 6"*2 in extreme breadth and 3"*7 in depth. Its diaphragmatic surface shows only the well-marked umbilical fissure about an inch in depth, and dividing it into right and left segments, of which the former does not greatly exceed the latter in size. Extending from the bottom of the fissure to the posterior or attached border, the delicate suspensory ligament (so often completely atrophied in Ungulates) is distinctly seen. There are no traces of lateral fissures. O n the under surface the left lobe is simple, with a thin nearly semicircular free edge. The right is much thickened at its posterior border, and has attached to it very distinct Spigelian and caudate lobes. The former, represented in most Ruminants by a mere smooth tract, has attached to it a flattened quadrate * In the Pudu the caecum is not quite so long and of greater diameter than in Moschus, being 5" in length and 2" in breadth. It has the usual obtusely ended cylindrical form, and wants the dilatation at the commencement of the colon observed in the Musk. t See " Lectures on the Comparative Anatomy of the Organs of Digestion of the Mammalia," Medical Times and Gazette, Sept. 21st, 1872. |