U. S. NATIONAL MUSFUM 



BULLETIN 100, VOL. 2, PART 2 PL. I 



an. 



Fig. 2. S- 



M£.4. 



Cyclosalpa pinnata. I, Solitary Form, 2; 2, Solitary Form, the 

 Aperture of the Ciliated Funnel; 3, Aggregated form, 3; 4, Aggre- 

 gated'form. the aperture of the ciliated funnel. 



For explanation of plate see page 181. 



