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Show 1869.] ANATOMY OF PROTELES. 489 in Proteles; whereas in Daubenton's Hyaena it was more than eight times, and in one dissected by Reimann between six and seven times. The liver (figs. 7 and 8) is large and deeply subdivided. As usual in the Carnivora, its main divisions are three, of about equal size :- 1. The left lobe (L) is simple, flattened, rhomboid, without subdivisions. 2. The middle lobe (M and Q) is broad, deeply cleft at the umbilical fissure into two pointed tongue-shaped pieces, of which the left (Q) is the smaller. The right portion (M) has the gall-bladder (B) attached to the left side of its under surface, its fundus projecting beyond the margin of the cleft. Between these two portions is a small accessory lobule. 3. The right lobe (R) is pointed, or, rather, heart-shaped ; near its upper edge are attached two accessory lobules-the Spigelian lobe (S), conical, pointed, and projecting backwards, and another (fig. 8, A), rather larger, with a truncated notched edge, turned to the right. On the under surface of the lobe, near the apex, is a triangular pointed prominence-a sort of second apex. The outer (right) border has two notches. The entire width of the liver, when lying on a flat surface with the lobes spread out, is 8". The left lobe is 4"-6 long, and 2"*6 broad; the middle lobe 3"*9 in greatest length, and 3"*6 broad; the right 4"*4 long, 3" broad. The gall-bladder was of a simple pyriform shape, without any Fig. 7. Upper surface of liver ; half the natural size. B. Right lobe. L. Left lobe. M. and Q. Divisions of the middle lobe. S. Sjrigelian lobe turned upwards. B. Gall-bladder. U. Remains of umbilical vein. VC. Vena cava. HV. Orifices of hepatic veins. |
