38 THE VICTORIAN NATURALIST. 



C. tenui, Herm. ... ... Yarra (lagoon) 



C. ornithocephalum, A. Br. .., Rosstown 



Fam. — Pleurococcacese. 



Genus. — Pleurococcus, Menegh. 



P. vulgaris, Menegh. ... ... (Common) 



P. mucosus, Rabh. ... ... Yan Yean, Bendigo, &c. 



Fam. — Hydriodictyacese. 



Sub-Fam. — PEDIASTRE^. 



Genus. — Pediastrum, Meyen. 



P. duplex, Meyen ... ... Yan Yean (Res., plankton) 



P. duplex, var. clathratum, A. Br. Yan Yean (Res., plankton) 



P. duplex, var. reticulatum, Lagerh. Yan Yean (Res., plankton) 



P. tetras, Ehrenb. ... ... Whanregarwen 



P. boryanum (Turp.), Menegh. Cheltenham 

 [" P. ehrenbergii "] 



Fam. — Protococcaceae . 



Sub-Fam. — CCELASTRE^. 



Genus. — Coelastrum, Nag. 



C. proboscideum, Bohl. ... Cheltenham 



Sub-Fam.— CRUCIGENIE^. 



Genus. — Crucigenia, Morren. 



C. rectangularis, (Nag.), Gay ... Rosstown 

 C. tetrapedia (Kirchn.), West and 



G. S. West ... Rosstown 



Sub-Fam.— SELENASTRE^. 



Genus. — Scenedesmtis, Meyen. 



S. bijugatus (Turp.), Kiitz. ... Yan Yean (plank.), H'berg. 



S. obliquus (Turp.), Kiitz. ... Cheltenham, Fernshaw * 



S acutiformis, Schroeder ... Cheltenham 



S. denticulatus, Lagerh., var. 



linearis, Hansgh. ... Yarra (lagoon) 



S. quadricauda (Turp.), Breb. ... Fernshaw* 



Genus. — Ankistrodesmus, Corda. 



A. falcatus (Corda), Ralfs ... Yan Yean Reservoir (plank.) 



A. falcatus, var. acicularis (A. 



Br.), Mob. ... ... Yan Yean Reservoir 



A. falcatus, var. spiralis (Turn.), 



Mob. ... ... ... Yan Yean Reservoir 



* These species were collected by Dr. Berggren in 1875, and recorded by 

 Prof. Nordstedt. 



