922 ADDENDA TO THE AUSTRALIAN HYDEOMEDUS^, 



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. CAMPANULINID.^. Von 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. Von Lendenfeld. 



Campanulinidee, 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. Makrogona. 



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 Allman (4), and with 



(1.) Compare AUman. Monograph of the Gymnoblastic or Tubularian 

 Hydroids. Vol. I. Page 142. 



(2.) R. von Lendenfeld. Eucopella Campanularia. Zeitschrift fitr Wis- 

 senschaftliche Zoologie. Band XXXVIII.. Seite 499. 



(.3 ) T. Hincks. On some new British Hydroids. Annal. and Maigazine 

 of Natural History, 2nd series, Mai'ch, 1836. 



(4.) G. T. Allman. On the structure of the Eeproductive Organs in 

 certain Hydroid Polypes. Proceedings of the Royal Society of Edinburgh 

 for 1857-58. 



