Cassiope a Xamachana , for while the labial groove is still open 

 in the proximal half of an oral arm, in its distal half the 

 vesicles are formed and branches are in the process of forma- 

 tion. 



The outline of the umbrellae margin has not ohan^-^ed essen- 

 tially since the last stage. The areas of adhesion have be- 

 cane much wider than the radial Ccinals they separate and in 

 them Lhere has appeared a network of anastomosing canals, whil( 

 the gastric filaments have become numerous. In short we have 

 nov; followed the larva of our Cassiopea from its first appear- 

 ance as a bud, to a point where with the exception of the go- 

 nadia all the organs of the adult are outlined. Here we must 

 take leave of it. 



- 60 - 



