CONTENTS 



Introduction P^S^ ^47 



Veretillidae 240 



Some general remarks on the family 248 



Cavermdaria elegans .....■■■■■ 249 



Veretillum cynomoriiim 250 



Actinoptilum molle 251 



Renillidae 251 



Renilla miilleri 251 



Umbellulidae 251 



Revision of the genus t/mie/Ma 251 



Key to the species of Umbellula 252 



Spiculate species of Umbellula 252 



U. durissima .....■■■■•■ 252 



U. thomsonii .....••■••• 253 



Non-spiculate species of Umbellula 254 



Group A 254 



U. huxleyi 254 



U. spicata .......•••• 257 



Group B 258 



U.pellucida 261 



U. lindahli 262 



Zoogeographical remarks on Umbellula 271 



Pennatulidae 276 



Pennatula rubra 276 



Pteroeididae 278 



Pteroeides griseum 278 



References 279 



