DIGESTIVE TRACT OF THE CAT. 



37 



caudate lobes. The depression for the kidney, as well as 

 two grooves for the small intestine, are to be noticed. 



It is at about this stage of development, it seems to me, 

 that the liver is most influential in its effect upon the posi- 

 tion of the neighboring organs. 



In this embryo the caecum lay to the right of the median 

 line, close to the duodenum, so that a transverse but no as- 

 cending colon was present. The oesophageal opening of the 

 stomach was well to the left of the median line. The 



Fig. 22. 



The caudal surface of the liver of a cat embryo 61 mm. (Enlarged 5.3 diam- 

 eters.) fZ., duodenal groove, r. c, right central lobe, c, caudate lobe. ^^, 

 kidney impression, r. Z., right lateral lobe, z"., intestinal grooves. 1. Z., left lat- 

 eral lobe, oj., apex of Spigelian lobe. /., groove for fundus, v. a., in relation 

 with the vertical arm of the lesser curvature of the stomach, ce., oesophageal 

 groove, s., Spigelian lobe, p., groove for pylorus, y., portal vein. 



stomach rested upon the Spigelian lobe, whose apex ex- 

 tended caudad from the lesser curvature, and was in close 

 relation with the greater curvature. The dotted line in Fig. 

 19 indicates the boundary of this Spigelian lobe, and gives 

 its relation to the stomach. Fig. 14 also shows this from 

 a different point of view. The great omentum has been 

 opened, and so the apex of the Spigelian lobe is seen appear- 

 ing dorsad from the stomach. A glance at Fig. 20, which 



