(ESOPHAGUS, STOMACH, AND INTESTINE. 235 



Oe 



FIG. 192. DIFFERENT FORMS OF MAMMALIAN STOMACHS. 



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

 Ruminant stomach, the arrow showing the direction which the food takes; B,, 

 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 ; JR, R, rumen and reticulum ; A, abomasum ; WZ, water cells. 

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

 I, stomach of Bradypus tridactylus ; -H, the portion corresponding to the rumen ; 

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

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

 ojsophagus ; P, pylorus ; Sc, cardiac sac ; Sp, pyloric sac ; Ca, cardia. 



(Fig. G after Gegenbaur.) 



