WOMBAT. 



the right and left lateral lobes than in the other speci- 

 mens. The right lateral fissure measures 3.5 cm., and 

 the cleft for the gall bladder measures 4.5 cm. dorso- 

 ventrally, and 1.25 laterally 



D. — Here there was no right lateral fissure, only a 

 gap on the dextral margin defining the right portion of 

 the mesial from the right lateral lobe. 



Right Lateral Lobe. — A. — This is prolonged down 

 ventral and external to the right kidney as a somewhat 

 pointed extremity, and is concave below for the reception 

 of that organ. It measures dorso-ventrally 11 cm., and 

 laterally 10.5 cm., being larger in size than the mesial 

 lobe. Running along its inner or left part is the inf. v. 

 cava, which is seen leaving the liver on its passage to the 

 diaphragm above the upper part of the interval or gap 

 between the right and left lateral lobes. The wall of the 

 inf. v. cava in its hepatic relationship, which measures 

 7 cm., is seen dorsally, i.e., is not covered by hepatic tis- 

 sue. 



Relations to Diaphragm. — In the region correspond- 

 ing to the entrance of the oesophagus and the exit of the 

 inf. v. cava the tendinous part of the diaphragm is closely 

 applied to the liver. On the sinistral side the posterior 

 or dorsal edge of the left lateral lobe is connected to the 

 muscular and tendinous portion of the diaphragm by a 

 thin but strong band, the width of which on the extreme 

 left = 4.5 cm., and so a good deal of mobility is allowed to 

 this part. Internally, i.e., approaching the inf. v. cava, 

 as shown in the diagram, the membrane encroaches on the 

 diaphragmatic surface. On the dextral side the attach- 

 ment of the membrane is rather to the dorsal portion of 

 the diaphragmatic surface than to the dorsal edge, and the 

 membrane is narrower, with the greatest measurement 

 only 3 cm., and so dextrally the liver is less mobile. 



44 



