226 



COMPARATIVE MORPHOLOGY OF VERTEBRATES. 



oe 



FIG. 228. Outlines of the stomachs of various mammals (various authors), after 

 Oppel, to show the distribution of the different glandular regions. Horizontal lines, 

 oesophageal; oblique, cardiac; dots, fund us; crosses, pyloric; A, Ornitharhynchus; B, 

 gray rat; C, tapir; D, seal; E, whale (Lagenarhynchus); F, mouse; G, dog; H, kangaroo 

 (Macropus) . 



FlG. 229. Diagram of ruminant stomach, the dotted line showing the course of the 

 food, a, abomasum; oe, oesophagus; p, pylorus; ps, psalterium (omasus, manyplies); tr, 

 reticulum (honeycomb); ru, rumen (paunch). 



