4 G. o. sabs. [No. 9. 



On closer examination I also succeeded in detecting among 

 the numerous specimens of that form several other Cladocera, 

 all of them apparently species described by King, and moreover 

 a few Ostracada and Copepoda were found. In the following 

 pages I propose to give some preliminary notes on the species 

 contained in the collection, hoping subsequently to be enabled 

 to examine the forms in a living state by hatching operations 

 of dried mud from the same locality. 



Cladocera. 



1. Daphnia carinata, King. 

 Baphnia carinata, King, On some of the species of Dapbnids 

 found in New South Wales. Papers and Proceedings of the 

 Royal Society of Van Diemens Land. Vol. II, Part II, p. 246, 

 PI. I A-a. 



This is a very distinct species, which, as had also been poin- 

 ted out by Mr. King, undoubtedly has its nearest ally iu the 

 European species, B. psittacea, Baird, not as believed by Schoedeler, 

 in B, magna, Straus. Thus the structure of the terminal part 

 of the body (the tail) agrees much more with that of the former 

 than the latter species. From B. psittacea it is however very 

 markedly distinguished by the rudimentary condition of the 

 antennulae in the female, as also by the relatively much higher 

 and more evenly rounded crista of the head. It would also seem 

 to attain a somewhat larger size, the length, exclusive of the 

 spine being 3V 2 mm. 



Several pretty well preserved specimens of this beautiful 

 species, well agreeing with the fig. A given by Mr. King, were 

 found in the collection, all females, mostly loaded with numerous 

 summer-eggs or embryos in their matrix. 



