922 ADDENDA TO THE AUSTRALIAN HYDROMEDUS^E, 



The tentacles are from 30 to 40 in number, and inserted in the 

 margin of the Umbrella by means of a plug-shaped f&g. 22a) 

 centripetal process (1). 



Eight adradial Otolithes at the side of adradial tentacle-bulbs. 



12. FAMILY. CAMPANULINIDJE. Yon Lendenfeld. 



No Australian representatives of this family were known 

 hitherto. I have had occasion to examine the Gonophors of some 

 Hydroids, which are apparently identical with Campanularia 

 Caliculata Hincks ; and I find that they are Medusostyles. 

 Therefore I consider myself justified in placing this well-known 

 Hydroid in this family. 



59a (75.) GENUS. CAMPANULINA. Yon Lendenfeld. 



Campanulinidse, which consist of Polycolonies invested by a 

 chitinous Perisarc, and containing alimentary zooids, with one 

 verticil of filiform tentacles, invested by a radially symmetrical 

 cup on a peduncle, Polypostyles, which grow from the Hydrorhiza 

 in the shape of trumpet-like tubes, and Medusostyles budding 

 at their sides. 



Connected by Eucapella with Eucope. 



214a (240). CAMPANULINA CALYCULATA. Von Lendenfeld. 

 Var. Mahrogona. 



In my paper on Eucopella (2) I referred to a Hydroid from 

 Port Phillip, which is very similar to Eucopella, and which I 

 believed to belong to the above species. I have since obtained 

 specimens with Gonophors, and find that it is identical with 

 Campanularia Caliculata, Hincks (3) and Allinan (4), and with 



(1.) Compare A lhnan. Monograph of the Gymnoblastic or Tubularian 

 Hydroids. Vol. I. Page 142. 



(2.) R. con Lendenfeld. Eucopella Campanularia. Zeitschrift fur Wis- 

 senschaftliche Zoologie. Band XXXVIII.. Seite 499. 



(3 ) '/'. Hincks. On some new British Hydroids. Annal. and Magazine 

 of Natural History, 2nd series, March, 1836. 



(4.) (■'. T. A lhnan. On the structure of the Reproductive Organs in 

 certain Hydroid Polypes. Proceedings of the Royal Society of Edinburgh 

 for 1857-58. 



