Fig. Fig. IVb 
~-€ TENISON-WOODS, DELT. i S-T-LEIGH ¥ C8, LITH? SYDNEY. 
l. Normal Calice of ee excisus IV. Sphenotrochus variolaris. 
ll. Smilotrochus vacw 0 Do. 
la. Calice IVb Young Calice 
