32 



STRUCTURE AND CLASSIFICATION OF BIRDS 



very lizard-like appearance. The relative sizes of the 

 liver lobes appear to be of no importance systematically. 



P 



V 



X 



7i / 



> 



«' \ 



X 





/ 



Fig. 16. — Ai/Imbntaky Visoeba of Indian Dabtek. 

 (I.B~, gall bladder ; h.d., c.d., bile ducts ; P, pancreas. 



Numerous livers are figured by Gadow in Bronn's ' Thier- 

 reich.' 



