116 



MR. E. S. GOODRICH OX TTIK OCCIPITAL REGIOX 



Text-fio'. 50. 



poc. I 



./.v-.9-...!-,o 



■% m 



5/ m'f/ 



:(■:' ' 

 I 



© 





<.y. 



Ws 



I r 



s/?^ 



B 



SjO • 



..»-:.^ -'^i 



vrt 



'■■(■iilli"i>i>i 



I 



Diagrams of the segmentation of the metaotic region in Amphibia : 

 B according to Sewevtzoff, A according to my own observations. 



of seo-ment 4 seems to be early included in the rudiment of the 

 vagus' ganglia. Finally, text-fig. 51 represents what I believe to 

 be the true composition of the Amphibian head. 



Text-fig. 51. 



sp- hyp. 



brsl.' hypm 



Diagram of the segmentation of the anterior region of an Amphibian. 



We may now turn to the questions suggested on page 102. If 

 any segments have been stippressed, it is apparently behind the 

 vao-us - root that they I'lave been crushed out. Gegenbaur (4) 

 befieved. the occipital arch to be « compound of several skeletal 



