234 APPENDIX. 
CAMPANULARIA SYRINGA. fi. I. jig. 8. 
This Zoophyte twines itself parasitically upon a 
species of Sertularia. The cells in this species are 
thrown out at irregular intervals upon flexible stems 
which are wrinkled in rings. They consist of length- 
ened, cylindrical, transparent vases. 
CAMPANULARIA VOLUBILIS. Pl. I. fig. 9. 
A still more beautiful species, with lengthened 
foot-stalks ringed at each end. The polype is re- 
markable for the protrusion and contractile power of 
its lips. It has about twenty knobbed tentacula. 
POLYZOA. 
Among Polyzoa the animal’s body is coated with 
a membraneous covering, like that of the Tunicated 
Mollusca, but which is a continuation of the edge of 
the cell, which doubles back upon the body in such 
& manner that when the animal protrudes from its 
cell it pushes out the flexible membrane just as one 
