(ESOPHAGUS, STOMACH, AND INTESTINE. 235 



Oe 



E 



Die 



FIG. 192. DIFFERENT FORMS OF MAMMALIAN STOMACHS. 



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

 Ruminant stomach, the arrow showing the direction which the food takes; R, E, 

 rumen and reticuluin ; 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 ; E, H, rumen and reticulum ; A, abomasum ; WZ, water cells. 

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

 I, stomach of Bradypus 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. Oc, 

 oesophagus ; P, pylorus ; Sc, cardiac sac ; Sp, pyloric sac ; Cct, cardia. 



(Fig. G after Gegenbaur. ) 



