74 UNIVERSITY OF COLORADO STUDIES 



Class SUCTORIA 

 Family PODOPHKYIDAE 



Podophrya Ehrenberg. P. fixa Miill. No active form of this species was found, but the 

 cyst which is characteristic was taken from Lake Eldora. Not observed in higher 

 lakes. 



Sphaerophrya Claparede and Lachmann. 5. urostylae ( ?) Maupas. 



A form probably of this species was found in material from Corona Lake. 



