﻿April, 1S57.] 



ELLIOTT SOCIETY. 



123 



oral cirrhi, while so far as known they are separated from other 

 groups also by their embryology. However, they are relatives of 

 Tubularia proper, as I shall show further on. 



Without, therefore, pretending to set the matter at rest, I present 

 the following scheme as a sort of rough draught of the divisions 

 which would probably result from the view I have taken. At the 

 same time stating my belief that limited as are our observations 

 as to the embryology of most genera, it will be impossible to assign 

 any very definite limits to families, or even, in many cases, to 

 decide to what family a given genus should be referred: 



Oceanidae. 



fCORYNIDiE 



iSarsiadae. 



f Oceania, 

 j Turritopsis, 



ITurris, 

 Modeeria ? 

 Saphenia. 



f Sarsia, 

 J Corynitis, 

 1 Dipurena, 

 [ Slabberia. 



First Sub-Order. 



Endostomata. 



Digestive trunk 

 at first enveloped 

 by the imperfor- 

 ate disk. Margi- 

 nal capsules nev- 

 er present at any 

 stage of growth ; 



general form 

 deeply campanu- 

 late. 



Clavidae \ Clava. 



VELELLID2E. 



TUBULARID^E . 



\SIPHONOPHORJE. 



/Pennaridee. 



Tubularidae 



\Hippocrenidas. 



/Physophoridee, 



iHippopodidae.. 



fVelella, 

 ! Porpita, 

 1 Chrysomitra, 

 [ Rataria, 



Cladonema, 

 Zanclea? 

 Pennaria, 

 . Willsia ? 



f Steenstruppia, 



1' Euphysa, 

 Tubularia, 

 Corymorphis. 



/Nemopsis, 



I Lizzia, 



\ Bongainvillea, 



/ Hippocrene, 



j Cytaeis, 



| Eudendrium, 



VHydractinia? 



Diphyidse 

 iPhysalidae 



f Forskalia, 

 J Agalrna, 

 1 Agalmopsis, 

 [Physophora, &c. 



Hippopodias, 

 Vogtia. 



{Prayia, 

 Diphyes, 

 Eudoxia, &c. 

 Physalia. 



