OBSERVATIONS ON THE PROTOZOA 
345 
*Symira uvella Ehr. 43, figure 56. 
Spherical rosettes of about fifty individuals, each bearing two 
unequal flagella. Two olive-brown, bandlike chromatophores. 
Vacuoles numerous. Colony 76 microns in diameter; maximum 
zooid 15 microns. 
Found late in March at the edge of a melting ice pond in the 
city park. This plantlike colony is said to be a source of of- 
fensive tastes and odors in drinking water. 
