CHORDATES IN GENERAL 



153 



Cerebral 



vesicle 



i^j Oral cirri 



■ Velum 



Velar tenia- 

 ' cles 



Zndostyle 



\ i 



r 



GlHslit 



Pharynx 



^^. Atrial 

 ." cavity 



>« 



."'7 ' 



r 



1' 



w 



Liver 



Gonad 



■- — Notochord 



-"-Meta pleural 

 fold ^ 



Spinal cord 



Atriopore 



Intestine 



Ventral fin 



m 



Anus 



Caudal fin 



«.. «. Diagram of ^"Phloxu^s^^Branc.io.toj^^^^^^ ,„m the right side. 



