KOALA. 



peritoneal bands are noted passing from the region of the 

 lesser curvature of the stomach to the under surface of 

 the left lateral lobe. These are ventral to the lesser 

 omentum, are more developed in some specimens than in 

 others — and may even approach the ventral border. 



Mesial or Cystic Lobe. — As on the diaphragmatic 

 aspect, three divisions of the mesial lobe are noted — the 

 right being the largest, and the intermediate portion the 

 smallest. Occasionally, however, the left may be smaller 

 than the intermediate portion. The Assuring and lobu- 

 lations on this surface of the liver are seen to be charac- 

 teristic of the mesial and right lateral lobes. The left 

 division of the mesial lobe is usually demonstrable from 

 this aspect, but it may be almost completely hidden by 

 the extension to the right of the left lateral lobe. This 

 portion is frequently fissured ventrally, and posterior- 

 ally it narrows, presenting a projection lying parallel 

 with the somewhat similar projections of the left lateral 

 lobe. The left lateral fissure separates the mesial from 

 the left lateral lobe, and it may extend to the inf. vena 

 cava dorsally. Between the left cystic projection and the 

 dorso-int. part of the right cystic is the dorsal part of 

 groove for the cystic duct. The small intermediate por- 

 tion of the cystic lobe is frequently divided into two 

 lobules by a fissure. On its left is the fissure correspond- 

 ing dorsally to the suspensory ligt., and separating from it 

 the left part of the cystic lobe, and on its right it is hol- 

 lowed, forming part of the cleft lodging the gall bladder. 

 Dorsally on this lobe we notice a sharp pointed projec- 

 tion, and between this and a projection on the right cystic 

 is the commencement of the groove in which the cystic- 

 duct is lodged. The right or large portion of the mesial or 

 cystic lobe presents abundant Assuring and lobulation. It 

 is separated from the right lateral lobe by the right lat. 

 fissure, which is well defined on this face. The Assuring 



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