OESOPHAGUS, STOMACH, AND INTESTINE. 235 



Oe 



P 



Oe 



FIG. 192. DIFFERENT FORMS OF MAMMALIAN STOMACHS. 



A, Dog. B, Mus dccumanus. C, Mus musculus. D, "Weasel. E, diagram of the 

 Ruminantstomach, the arrow showing the direction which the food takes ; It, , 

 rumen and reticulum ; 0, psalterium ; A, abomasum. F, human stomach 

 inverted and prepared to show the muscles, a, b, c, on the inner side. G, sto- 

 mach of Camel ; R, R, rumen and reticulum ; A, abomasum ; WZ, water cells. 

 H, stomach of Echidna hystrix ; Cmi, lesser curvature ; Cma, greater curvature. 

 I, stomach of Brady pus tridactylus ; ft, the portion corresponding to the rumen ; 

 t, that corresponding to the reticulum of the Ruminant's stomach ; the former is 

 produced to form a csecal process at MB : **, pouches of the duodenum. Oe, 

 resophagus ; P, pylorus ; Sc, cardiac sac ; Sp, pyloric sac ; Co, cardia. 



(Fig. G after Gegenbaur.) . - 



