148 THE VICTORIAN NATURALIST. 



pumilio, Helichrysum leucopsidium, and II. Jerrugineum. Come- 

 sperma ericinum, Tetratheca ciliata, Dianella longifolia, and 

 Lobelia simplicicaulis were also noted in bloom. A couple more 

 species of ferns were added to the list, and regret was expressed 

 that time did not allow of further exploration in such an 

 interesting district. — F. G. A. Barnard. 



RECORDS OF SOME VICTORIAN ENTOMOSTRACA. 

 By J. F. Haase. 



(with plate.) 

 (Read before the Field Naturalists' Club of Victoria, 9th Feb., 1903.) 



The object of writing this paper is to bring before the members 

 this very interesting group, the study of which has been so 

 peculiarly neglected in our State. The species here mentioned 

 are the most likely forms to be met with in the neighbourhood 

 of Melbourne. 



This paper will only deal with the Cladocera, one of the three 

 groups of the Entomostraca, the other two being Ostracoda and 

 Copepoda. 



A few brief remarks dealing with their habits and mode of 

 reproduction may be of interest, particularly to those members 

 who may not have the opportunity to avail themselves of the 

 literature on the subject. As far as I am aware there are no 

 figures obtainable of the below species in our public libraries, 

 and I have thought it not out of place to illustrate the specimens 

 recorded. 



The body, with the exception of the two pairs of antennae, is 

 enclosed in a shell or carapace, joined at the dorsal surface. 

 The ventral edges are open and movable. 



Throughout life the animal undergoes a series of moults, more 

 noticeable in the young. Being much afflicted with growths of 

 Vorticella on the edges of the shell and appendages, rapid 

 moulting is a great advantage. 



Respiration is carried on by means of branchise attached to the 

 feet. The feet, 5-6 pairs, vary in number in different genera. 

 They are not adapted for locomotion. 



The head is furnished with two pairs of antennse, the 

 superior being one or two jointed, and having at the apex a 

 number of fine setae. These setae are considered to be the 

 olfactory organs. The inferior or swimming antennae are very 

 large, two-branched, many-jointed, and often densely plumose. 



The eye is single and very distinct. An ocellus is often 

 present, sometimes small, but in the Chydoridae attains a large 

 size. 



The alimentary canal, which is generally very conspicuous, is 



