PLATE I. 



Fig. 1. Crypto huntsmani. Hydranth of an adult zooid showing distribu- 

 tion of tentacles. 



2. Hydranth with gonophores present. 



3. Group of young zooids showing attachment to the mycelium-like 



base. 



4. Side view of a gonophore. 



5. End view of a gonophore. 



Note. — In these as in all the other drawings the magnification is 30 

 diameters so that direct comparison can be made for size in any case. 



