142 



MR. V. CHAIMEKS MITCHELL OK TfiB [Jan. 14, 



is longer than the others, as frequently happens when the csBca 

 lire relatively short. It is drained partly by the duodenal vein. 



Fiff. 5. 



Coli/mbiis septentrionalis ; intestinal tract, x, short-circuiting vessel from 

 duodenal to posterior mesenteric vein cut across. 



The last part of the intestine is long and straight, and the poste- 

 rior mesenteric vein drains the ceeca and part of the region in 

 front of the cseca. 



SriIBNISOirOEMHS, 



In these (fig. 6) the primitive arrangement is disguised by the 

 enormous length of the gut and consequent complexity of the 



Fig. 6. 



Eudyptes vlirysoeome ; intestinal tract, x, short-circuiting vessel cut across. 



