72 



CCELENTERATA AND 



D. Pupa. 



A pupa has been found at Newport which is referred to 

 Leptosynapta. Body, barrel-shaped, girt by rows of cilia 

 in bands. Mouth at one extremity and tentacles seen 

 through the body walls. Calcareous deposits in the walls 

 under the ciliated bands. The young of this pupa is an 

 Auricularia. 



YOUNG OP AMPHIURA. 



Attached young. 



The young of the following New England genera of 

 Echinoderms are attached, borne on the mother or have an 

 indirect development. 



