Polyps, Jelly-fishes and Sponges. 71 



FIG. 88 — CHRYSAORA ISOSCELES. 



considerable size, and differ from those of Ohelia in not being 

 contained in cup-like, skeletal structures. 



On account of their small size, the Jelly-fishes produced 

 from Zoophyte colonies are not very conspicuous objects. At 



