ECHINODERMATA OF NEW ENGLAND. 



23 



manner that the proboscis appears to arise from its con- 

 vex side. Velum narrow. 



0. gelalinosa. 



Clytia. Bell disk-shaped, transparent, colorless. Tubes 

 four. Tentacles numerous. Sense-capsules, eight. Ten- 

 tacular bases thickly pigmented. Proboscis short, lips 

 simple. 



C. bicophora. 



STAUROPHORA. LIRIOPE. 



Oceania. Bell, very flexible, disk-shaped, transparent, 

 and moves with a languid motion. Four tubes with elon- 

 gated ovaries. Tentacles numerous, thread-like, flexible. 

 Proboscis short. Ovaries found on the peripheral two- 

 thirds of the radial tubes. 



O. languida. 



