Discriptious of some Australian Phyllopoda. 



Estheria PacTiardi, Brady. 



Limnetis Tafei, Brady. 



Both the descriptions and the figures are, however, very 

 imperfect, and hardly suffice for fully recognizing the species, 



In a list of the Invertebrate Fauna of Port Jackson, Mr. 

 Th. Whitelegge, enumerates, besides the Kingian species, an 

 undetermined species of Apiis, another of Chirocephdlus, and 

 3, likewise undetermined species of Estheria. 



Finally, the author has added to the Australian Fauna the 

 interesting form at first recorded by Baird from India as 

 Estheria hislopi, which, on a closer examination, has turned 

 out to be the type of a very distinct genus, Cydestheria 

 G. O. Sars. 



According to the above account, it would seem that the 

 Australian continent is very rich in Phyllopoda; but as 

 most of the species recorded are very imperfectly descril)ed, 

 it is highly probable, that some of them, on a closer examina- 

 tion, will turn out to be merely spurious. On the Avhole, a 

 much more thorough investigation than, that generally insti- 

 tuted, is needed for the exact definition of the species of the 

 several Phyllopodus genera. Moreover, a careful comparison 

 ought to be made with species described at an earlier date 

 from other countries, since it appears highly probable that the 

 Phyllopoda exhibit a very wide range of distribution, as showu 

 in the case of Cydestheria hislopi. 



In the following pages 5 Phyllopodous forms, belonging 

 to 4 different genera, will be described in detail. The accom- 

 panying plates have been prepared by the autographic method, 

 and may, I hope, serve for easily recognizing the species. 



