BY R. VON LENDENFELD, PH.D. 425 



Haeckel (1) mentions a number of Medusae from Australia. 

 In his sense, the Australian district extends over all the neigh- 

 bouring islands, and especially New Guinea. I intend to limit 

 myself to those species found near Australia and New Zealand. 



Haeckel describes twelve Rhizostomae from the coasts of the 

 Australian Islands. One of these comes from a part not exactly 

 particularized, and therefore does not throw any light on the 

 Geographical Distribution. I have myself found four Rkizostomse 

 on the Australian coasts, but only three of these were preserved 

 sufficiently to admit of description. 



One of these Medusae is the Crambessa mosaica (2) of Haeckel, 

 the two others were first discovered by me (3). We have therefore 

 to consider the following fourteen species :■ — - 



RHIZOSTOMAE. 



Toreumid^:. 

 Archirhiza primordialis. Haeckel. 

 Haeckel (4) describes this Medusa found in Bass' Straits. 



Archirhiza aurosa. Haeckel. 



This New Zealand Rhizostorne was sent to Haeckel (5) without 

 any exact account of where it was found, but as we only find 

 anv lively intercourse of vessels on the East Coast of these Islands, 

 and at any rate as far as the Southern Island is concerned, 



(1.) E. Haeckel. Das System der Medusen. Seite XIII. , 645. 



(2.) R. von Lendenfeld. Ccelenteraten der Siidsee, III., iiber Wehrthiere 

 fmil Nesselzellen. Zeitschrift fur wissenschaftliche Zoologie. Land, 

 XXXVIII. Seite, 364. 



(3.) R von Lendenfeld. Ueber eine nene Uebergangsform zwischen 

 Sajmostomae und Rhizostomae. Zoologischer Anzeiger. Baud V. Seite 380. 

 Zur Metamorphose der Rhizostomen. Zoologischer Anzeiger. Band VII. 

 The Scyphomedusre of the Southern Hemisphere. Proceedings of the 

 Linnean Society of New South Wales, 1884. 



(4.) E. Haeckel. Das System der Medusen. Seite, 565. 



(5.) E. Haeckel. Das System der Medusen. Seite, 645. 



