SOME AUSTRALIAN FRESHWATER COPEPODA AND OSTRACODA. 39 



This form lias been recorded from Europe, Asia, Africa 

 and North and South America. Sars gave the following 

 Australian localities, Centennial Park, Bourke Street and 

 the Waterloo Swamps, Sydney, and St. Arnaud, Victoria. 



Genus PAOHYOYOLOPS, Sars. 



Pachycyclops annulicornis, Koch. 

 Syn. Cyclops quadricomis albidus, Jurine, O. tenuicomis 

 Glaus, C albidus, Schmeil, 0. gyrinus, Forbes. 



This species was first described by Koch in "Deutsch- 

 lands Orustaceen," Heft. 21, Tab. 6.( 15 > 



It is described and figured in detail by Sars in the "Crus- 

 tacea of Norway." (31) 



This form was collected at Kendall in both winter and 

 summer months, and at Waterfall in July. 



This species lias been recorded from Europe, Northern 

 Asia, Central Africa, North and South America and Hawaii. 

 Sars recorded it from the Centennial Park, Sydney, and 

 St. Arnaud, Victoria. 



Genus LEPTOCYOLOPS, Sars. 



Leptocyclops agilis, Koch. 

 Syn. Cyclops serrulatus, Fischer, C. varius var. brachyura r 

 Lilljeborg. 

 Koch first described this species in Deutschlands Crus- 

 taceen, Myriopoden und Arachniden, (15) Heft 21, Tab. 3. 



A more detailed description is given by Sars in the "Crus- 

 tacea of Norway." (3l) 



This very common form was collected at Kendall and 

 Orange in December, the Lett River in September, at a 

 pond in the University Grounds in July, and at Byron Bay, 

 Bangalow and Dorrigo in January. 



This species has been recorded from Europe, Asia, Algeria, 

 The Azores and North America. In Australia it has been 



