Poly zoa from Port Phillip. 13 



In this paper the new species are dcscribed,_ those new to 

 the locality recorded, and remarks made on points of interest 

 in tlie known species. 



Group ECTOPBOCTA. 



Suborder CheilOSTOMATA. 



Family Flustridae. 



Genus Flustra. 



Flustra reticulum, Hincks. 



Flustra reticulum, Hincks, Ann. & Mag. Nat. Hist. [5] x. p. 100, 



pi. vii. fig. 4. 

 There are two specimens of F. reticulum in this collection, 

 one answering in every particular the description given by 

 Hincks, the other presenting certain curious differences. In 

 the latter the marginal radical (?) fibres have become greatly 

 developed, bending backwards on each side and branching 

 copiously in a dichotomous manner. The horny spines from 

 each side meet and interlace across the middle of the posterior 

 surface of the branches. 



The colour of the variety differs from that of the typical 

 form, being pale yellow in place of dark brown. If it_ is 

 necessary to make anew variety of this form, a name descrip- 

 tive of the curious modification of the marginal spines is 

 suggested in var. " dorsitectay 



Family Cribrilinidse. 

 Genus Ceibrilina, Gray. 



Crihrilina pMlomda, Busk. 

 Cribrilina philomela, Busk, Cliall. Rep. p. 132, pi. xvii. fig. G, 

 The specimen incrusts Idmonea marioneyisis, Busk. The 

 zoojcia differ in no respect from those of the Hemescharan 

 form described by Busk. There are no vicarious avicularia 

 present ; hence the Port-Phillip specimen, although incrust- 

 ing, is not identical with var. adnata, Busk. 



Family Escharidas. 

 Genus Lepralia, Johnston. 

 Lepralia Pallasiana. 

 The specimen from Port Phillip Heads has a finely deve- 



