Acta Societatis pro Fauna et Flora Fennica, 38, N:o 1. 23 



Sphcsrocystis Schroeteri Chodat. 



Botryococcus Braiinii Kutz. 



Dictyosphcerium pulchellum Wood & Dictyosphcsrium 



Ehrenbergianum Nag. 



Raphidium sp. 



Pediastnim Boryamim (Turp.) Menegh. 



Coelastriim proboscideiim Bohlin. 



Eremosphcera viridis de Bary. 



Kirchneridla lunaris (Kirch.) Mob. 



Crucigenia rectangnlaris (A. Br.) Chodat. 



Conjugatce. 



Zygnema sp. ster. ^s^vmOg, ^'11x09, ''jxOd, ^'IviU. 



^Sixll. 



Mougeotia sp. ster. ^^/vill, ^Vvn 11. 



Spirogyra sp. ster. ^\ vn 09. 



Gonatozygon sp. ster.^/vn 11. 



Hyalotheca dissiliens (Smith.) Breb. 



Hyalotheca mucosa (Mert.) Ehrenb. 



Closterium sp. ^/viii 11. 



Cosmarium moniliforme v. limneticum West. 



Cosmarium contractum v. elUpsoideum (Elfv.) West. 



Euastnim verrucosum Ehrenb. 



Micrasterias rotata (Grev.) Rales. 



Micrasterias denticulata Breb. 



Staurastrum gracile Ralfs. 



Staiirastriim hmatiim v. planctonicum West. 



Staurastrum curvatum West. 



Staurastrum paradoxum v. longipes Nordst. 



Staurastrum arctiscon Lund. 



Arthrodesmus incus Hass. 



Flagellatce. 



Mallomonas caudata Iwanoff. 



Synura uvella Ehrenb. 



Uroglena volvox Ehrenb. 



Dinobryon cylindricum Imhof., v. divergens (Imhof.) Lemm. 



