ECHINODERMATA OF NEW ENGLAND. 19 



Zanclea. Bell oval, with slight apical prominence. 

 Tubes four. Tentacles four, each with lateral branches 

 formed of a small pedunculated cluster of cells. Proboscis 

 extends to opening into the bell-cavity. Bell walls with 

 cluster of lasso-cells above the origin of the tentacles from 

 the margin. 



Z. gemmosa. 



YOUNG TURRIS. TURRIS. 



OTOCYST OF EUTIMA. EUTIMA. 



Turns. Bell mitre-shaped, with apical prominence. 

 Tubes four. Tentacles numerous and of two kinds. The 



