402 THE AUSTRALIAN HYDROMEDUS.«, 



III. SUB-FAMILY CAMPANULARIN.E. Von Lendenfeld, 1S84. 



Blastopolypida) with free alimentary Zooids on stalks, and 

 invested by a chitinous cup. The Polypostyls are simple mouthless 

 Zooids, in the gastral walls of which the generative elements are 

 matured. They possess short stalks. 



1. GENUS. CAMPANULARIA. Von Lendenfeld. 



Cornpanularime with alimentary Zooids which are destitute of 

 an Operculum. All Zooids on simple unbranched Hydracauli, 

 which spring from a creeping Hydrorhiza 



The alimentary Zooids are very similar to some which belong to 

 the Hydromedusinse. The structure of representatives of this 

 genus has been described by Jickeli (1) and Weismann (2.) 



The Entoderm on the body is lower than on the arms, the 

 muscular cells are epethelial and not sub-epithelial as in many 

 other Hydromedusas. The cells of the tentacular axis are some- 

 times filled with Protoplasm. 



Jickeli describes extraordinary cells which occasionally fill the 

 whole of the Ectodei'm, and vary greatly in shape and size. They 

 appear as amoeba fixed in different stages of locomotion and 

 growth. 



The Entoderm of the Proboscis consists of particularly high 

 elements. 



CAMPANULARIA URNIGERA. De Lamarck. 



Lamouroux (3) describes this species from Australia under the 

 name Clythia urnigera. 



CAMPANULARIA MACROCYTTARIA. De Lamarck. 



Quoy and Gaimat'd (4) describes this species from Zostera 

 Antarctica, collected on the shore of Australia. 



(1.) C. Jickeli Der Bail der Hydroidpolypen. Morphologisches Jahr- 

 buch. Band, VIII. Seite, 631. 



(•2.) A. Weismann. Die Entstehung der Gesehlechtszellen bei den 

 Hydromedusen. Seite, 144-146. 



(3.) Lnjnourcmx. Histoire des Polypes Coralligenes flexiles, p. 203. 



(4.) Quay and Gaimard. Voyage de l'Uranie, etc. 



