papers ox biology and agriculture us 



The alimentary tract is complete only in the larger 

 animal, and consists of a greatly modified stomach which 

 continues into an elongate undifferentiated intestine. 

 The stomach is not readily differentiated into the usual 

 cardiac and pyloric regions but it consists of five simple 

 lobes, each connected with a centralized portion (Fig. 2). 

 The lining of this stomach is conspicuously ridged, and 

 the lumen into each pouch is constricted greatly by the 

 approximation of these gastric folds. Upon dissection 

 each pouch was found to contain coagulated masses of 

 green material, suggesting a possible accummulation of 

 bile secretions. Characteristic mammalian duodenum 

 and ileum can not be identified ; but an intestine, strange- 

 ly twisted and coiled, continues back from the median 

 pouch of the stomach through a small pylorus. Differen- 

 tiation of the intestine into ileum and colon portions can 

 not be made, for the entire tube is of uniform diameter 

 throughout, except for a single enlargement where the 

 shorter tract of the smaller pig continues into that of the 

 larger (Fig. 2, p.). 



A secondary stomach, that of the smaller pig, consists 

 of a two-lobed structure, and is bound firmly to the left 

 wall of the larger stomach by heavy strands of connec- 

 tive tissue. The cavities of the two are not continuous, 

 neither is there a connection of the smaller stomach with 

 the oesophagus ; so that no digestive function could ever 

 have been ascribed to this organ. Through a small py- 

 lorus, this secondary tract continues into a short intes- 

 tine, one-fourth the length of that of the larger pig, which 

 joints its mate at an enlarged region 15 cm. anterior to 

 the caecum (Fig. 2, p.). From point of junction the two 

 tracts are confluent and from thence continue as a single 

 tract to the rectal opening of the larger pig. 



This relationship differs from that of Carey's monster, 

 in which the alimentary tract is entirely single to a point 

 16 cm. anterior to the caecum, where it bifurcates into 

 two regions, each of which is related to its own rectal 

 aperture. The mesentery of this monster, peculiarly 

 twisted with the coils and twists of the intestine, is 

 possessed of an abundance of lymphoid and glandular tis- 



