126 ALLAN HAXCOCK PACIFIC EXPEDITIONS VOL. 4 



PLATE 18 



Fig. 8. A iiteiinulana septata 



Portion of colony to show arrangement of hydrocladia and hydrothecae. 



Fig. 9. Aniennulaiia telrascriata 



Portion of colony to show gonangium. 



Fig. 10. Plumularia teniiissima 



a. Portion of stem and hydrocladia. 



b. Portion of colon}- showing gonangia. 



