TASMAX1AN DEVIL. 



rounded by pancreatic tissue which is traceable up to the 

 portal interval, it finally opens into the intestine about 3 

 cm. beyond the pyloric sphincter. The portion of gut 

 between the pyloric sphincter and the duct entrance is 

 dilated, and although there is no duodenal loop here, as 

 in the other Marsupials, might be regarded as duodenal, 

 since I have found Brunner's glands. The wall of this 

 dilated part of intestine has a firm feel compared with the 

 intestine beyond the duct entrance, and it is interesting to 

 note the great vascularity of the intestine after the bile 

 duct has entered. The duct terminates by an easily de- 

 fined pin-hole opening. I have not found it associated 

 with any papillary projection. The total length of the 

 common duct, i.e., from the portal interval to intestine, 

 equals 9 cm. The pancreatic duct joins the common duct 

 5 cm. from its termination, i.e., comparatively near the 

 liver, and the tube is easily defined. After the entrance 

 of the pancreatic duct the common duct dilates, and the 

 circumference of the last 2 cm. is more than double that 

 of the common bile duct. The pancreatic duct is traced 

 out as a single duct towards the spleen. It is easily traced 

 in the pancreatic tissue, and receives branches in its 

 course. On the left it receives a well defined branch from 

 the pancreas, on the left lateral (lieno-mesocolic) fold. 



Lester Omentum. — In this Marsupial a distinction 

 between the dorsal mesentery, i.e., "meso-duodenum" and 

 lesser omentum, is made possible by the development of 

 a large Foramen Winslowii, which usually will admit the 

 thumb, and of which the portal vein, artery, and common 

 duct form the ventral boundary. The upper attachment 

 of the lesser omentum is short, and is traced from the 

 oesophageal concavity on the dorso-internal margin of 

 the left lobe to the portal interval. 



OB 



