330 



AN ELEMENTARY TEXT-BOOK OF BIOLOGY. 



The premolars are termed bicuspids. 



The caecum and appendix vermiformis are extremely small as 

 compared with the same structures in rabbit. 



Dorsal, aorta, 



Fig. 103. MAN. Diagram to explain fate of Aortic Arches (from 

 Macalister). The parts in black are obliterated. 



The large glands which open into the alimentary canal are sali- 

 vary glands, liver, and pancreas. Infra-orbital salivary glands 

 are not represented, the liver is not so deeply cleft into lobes, 



