TASMANIAN DEVIL. 



Mesial or Cystic Lobe is divided into two parts by 

 the cleft and fissure for the (Jail Bladder. The left of 

 these is, as stated, largely hidden by the left lateral lobe, 

 and the dorsal part of the right is hidden by the right 

 lateral lobe. Either the right or left may be the larger 

 of the two portions. The Gall Bladder tits into con- 

 cavities in the walls of the right and left portions, form- 

 ing the margins of the cleft. The left part of the cystic 

 lobe ventrally is smooth, but dorsally, i.e., in the part 

 hidden by the left lat. lobe it is lobulated and fissured, and 

 on its inner, or right, extremity three fissures are usually 

 seen, so that an upper or ventral — mesial — and lower, or 

 dorsal portions, are described; the two upper forming the 

 left boundary of the gall bladder cleft and cystic duct, 

 and the lower partly of the cystic duct and partly the 

 boundary of the portal fissure. The right portion shows 

 as a rule no Assuring on the right margin, but is lobulated 

 and fissured on the inner or left side, forming the right 

 boundary of the gall bladder cleft and cystic duct fissure. 

 It is separated by a well defined fissure from the right 

 lateral lobe. It is worthy of note that this right-sided 

 Assuring is not so marked in the three lobed livers as in 

 those where the cystic and right lateral are one. This 

 suggests that a big fissure or interval and separation of 

 the lobes allows of elasticity. With closure of the fissure 

 and union we have numerous lobules and fissures. 



Right Latent! Lobe. — By means of a pointed ex- 

 tremity this lobe prolongs the liver down and to the right 

 into the lumbar region, external to the right kidney. Fis- 

 snring and lobulation are characteristic of this part. It 

 is noticeable that these, however, are practically confined 

 to the upper and intermediate divisions — the caudate lobe 

 being devoid of fissuring. Three main divisions may be 

 recognized — an upper small division — an intermediate 

 prolonged down and t<» the right — and a more mobile in- 



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