-hepatic vein 



-liver 



gall bladderl: 



gall bla< 



spiral valve_ 



.ventral mesentery 



y 



esophagus 



left lung 



pyloric region of stomach 



heavy ridges of stomach wall 



left- 



-right 



-caecum of stomach 



fat body / intestinal lobe 



spiral valve ^f y^^^^ 



right lung 



Figure 9-14, Viscera of Polypterus. A, ventral view of body cavity contents; B, anterior end of 

 viscera with port of the liver shown as a ghost and with the ventral wall of the gut removed to show 

 the interior; C, cross section of esophagus to show connection with lungs, right side to reader's right; 

 D, diagramnnatic cross section of body in region marked by horizontal line in A and B. 



268 



THE VISCERA 



