TASMANIAN DEVIL. 



or several fissures may be met with, giving rise to several 

 small lobules. Apart from the division formed by the gall 

 bladder cleft the evstie or mesial lobe may be a single 

 mass. As a rule, however, the cleft for the bladder is pro- 

 longed as a fissure dorsally. In one specimen the cystic 

 lobe laterally measured 14 cm. and dorso-ventrallv 11 cm., 

 and the cleft measured 8 cm. dorso-ventrally and 2 cm. 

 laterally, and was prolonged dorsally as a fissure for 3.75 

 em. In another the cleft was 3 cm. dorso-ventrally as 

 well as laterally and without fissure. The gall bladder is 

 well seen in the cleft on this aspect, and at the back of the 

 right portion of the cystic lobe corresponding to the inner 

 extremities of the right and left laterals we see the inf. 

 v. cava emerging from the liver before passing through 

 the diaphragm. 



Bight- Lateral Lobe. — This is the smallest of the three 

 lobes. It is prolonged as a pointed extremity into the 

 lumbar region above and external to the right kidney, 

 and is hollowed below for the reception of the caudal 

 pole of the latter. Usually the right lateral lobe is sep- 

 arated from the mesial by a fissure prolonged obliquely 

 inwards towards the inf. v. cava. In others, beyond a 

 slight lateral fissure, there may be no separation, — the 

 mesial and right laterals forming practically one lobe. 

 In others, with the slight Assuring we may find an irregu- 

 lar depression denoting the site of the old fissure. Thus 

 in the Tasmanian Devil we may have — seen from this 

 aspect — a liver consisting of only two lobes, viz., left 

 lateral and right lobe, the latter being formed by the 

 union of or a failure to separate of the mesial or cystic 

 lobe and the right lateral. The greatest length of a free 

 right lobe laterally is 8 cm., and dorso-ventrally 11 em. 

 Occasionallv the right lobe may be subdivided by a well 

 marked fissure. In some, small fissurings are met with 

 on the right edge. 

 Gl 82 



