PLATE VII. 



Pig. 



1. Agalma breve, complete; magnified. Taken on the east coast of Australia. 



2. Its pneuraatophore. 



3. A fully formed and (figs. 4 and 5) young nectocalyces. 



6. A young hydrophyllium. 



7. The end of a tentacular branch. 



8. Part of the coenosarc, with hydrocysts and gonoblastidia. 



9. 10. Young and fully formed gynophores. 



1 1 . An androphore. 



12. A young Agalma. 



