76 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 4 



PLATE 1 



Fig. 1. Cla'va pari'a 



a. Nutritive zooid. 



b. Generative zooid. 



Fig. 2. Corydeiidrium flahcUatum 



a. Portion of fascicled stem, 

 h. Hydranth extended. 



Fig. 3. Tuhiclava laxa 



Colony showing nutritive and generative zooids. 



Fig. 4. Tubiclava triserialis 

 A single zooid. 



Fig. 5. Balea irregularis 



Portion of fascicled stem and zooids. 



Fig. 6. Corync ri'pcns 



a. Two zooids. 



b. Zooid with sporosacs. 



I 



