jgg WISCONSIN PHYTOPLANKTON 



PLATE 3. 



Page 



Fig. 1. Aphanocapsa Grevillei (x 825) 43 



Fig. 2. Aphanocapsa rivularis (x 825) 43 



Fig. 3. Aphanocapsa clachista var. planctonica (x 1000) 42 



Figs. 4-5. Coelosphaerium Kuetzingianum (x 825) 34 



Fig. 6. Coelospfiaerium Naegeliamim (x 825) 35 



Fig. 7. Coelosphaerium dubium (x 825) 35 



