ECHINODERMATA OF NEW ENGLAND. 



21 



tubes and bell margin where there is a tentacular bulb 

 with a row of pigment spots. Ovaries from tubes and 

 proboscis. Proboscis short, with four oral dendritic ten- 

 tacles. 



N. BacJiei. 



Lizzia. Bell oval with apical projection and lower wall 

 thin. Tubes, four. Eight clusters of tentacles from the 



ZANCI.EA. 



YOUNG CALYCOPSIS. 



MODEKRIA. 



LIZZIA. 



bell-rim. Four of these have five tentacles in each cluster 

 and arise from the margin of the bell near the radial tubes 

 and the remainder of three each alternate with these. 

 Proboscis short, generally with budding young on its side;*, 

 with a quadrate mouth, each angle of which bears two 

 clusters of lasso-ceils. 



L. ocfopuncfata. 



