PLATE XV. 



Fig. I. Garveia annulata Nutting. Part of colony, showing hvdranths and 

 gonophores. 



2. Single hydranth, showing pseudo-hydrotheca (enlarged). 



3. Eudendrium vaginatum Allnian. Part of colony, showing hydranths 

 and gonophores. 



4. Single hydranth, showing pseudo-hydrotheca (enlarged). 



5. Cluster of female gonophores. 



6. Single gonophore, with expanded chitinous collar (enlarged). 



(194) 



