OBSERVATIONS ON THE PROTOZOA 
349 
V. libera as figured by Butschli on Plate 76 of Bronn’s Klassen 
und Ordnungen des Tierreichs. The cyst of the more common 
P. fixa is nowhere described as presenting so many annulations. 
*Tokophrya species 1. 57 and 58, figure 57. 
With the characters of the genus. Extremely minute sub- 
globular forms borne in clusters on a slender rigid stalk whose 
