ZOOLOGY 
438 
Saath 
atiinaegtanecstatemseearitt 
ras 
Both the branchial and 
the atrial cavities have been opened by a longitudinal incision to display the in- 
ternal organs. 
g on its right side. 
View of Ciona intestinalis lyin 
Fia. 254. 
branchial sac to the stomach, rather 
6. Oesophageal opening leading from the 
diagrammatic. 
5, Endostyle. 
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