G. 0. SAES. AUSTRALIAN CLADOCERA. [No. 7. 1888.] 



Tail from left side, magnified 300 diameters. 

 Adult male, viewed from right side; magnified 176 dia- 

 meters. 



Tail of same, from right side; magnified 300 diameters. 



Figs. 5 — 6. Alona laevissima, n. sp. 

 Adult ovigerous female, viewed from left side; mag- 

 nified 138 diameters. 



Tail from left side, magnified 300 diameters. 



Figs. 7—10. Alona clathrata, n. sp. 

 Adult female with winter-egg, viewed from left side; 

 magnified 138 diameters. 

 Tail from left side, magnified 300 diameters. 

 Adult male, viewed from right side; magnified 176 dia- 

 meters. 



Tail of same, from right side ; magnified 300 diameters. 



