XI.] 



THE ALIMENTARY SYSTEM. 



453 



15. In that man possesses a liver, he agrees, as has been 

 mentioned in the First Lesson, with all the other members of 

 his sub-kingdom ; and in that he possesses a solid liver he 

 agrees also with all, excepting only the Lancelet, in which 



FIG. 384. VISCERA OF LIZARD (Calotes]. 



(After Salverda.) 



la, lung ; //, liver ; g, gall-bladder ; s, stomach ; p, pancreas ; i, intestine : 

 r, rectum ; e, bladder. 



animal this organ is a mere cascuin-like, saccular diverticulum 

 (or offshoot) of the intestine, with its apex turned forwards. 



The liver may attain a much greater complexity, as regards 

 the number of its lobes, than we find in man, but in the 

 majority of Vertebrates (in all, that is, below his own class) 



