COMPARATIVE MORPHOLOGY OF VERTEBRATES. 
226 
Fic. 228.—Outlines of the stomachs of various mammals (various authors), after 
Oppel, to show the distribution of the different glandular regions. Horizontal lines, 
cesophageal; oblique, cardiac; dots, fundus; crosses, pyloric; A, Ornithorhynchus; B, 
gray rat; C, tapir; D, seal; E, whale (Lagenorhynchus); F, mouse; G, dog; H, kangaroo 
(Macropus). 
Fic. 229.—Diagram of ruminant stomach, the dotted line showing the course of the 
food. u, abomasum; oe, esophagus; , pylorus; ¢s, psalterium (omasus, manyplies); ¢r, 
teticulum (honeycomb); ru, rumen (paunch). 
