An order of plantlike, flagellate protozoa commonly found in freshwater. Characteristics include one or two flagella emerging from an anterior invagination of the cell and chloroplasts absent in many genera. ... (12 Dec 1998) ... Found on http://www.encyclo.co.uk/local/20973
An order of plantlike, flagellate protozoa commonly found in freshwater. Characteristics include one or two flagella emerging from an anterior invagination of the cell and chloroplasts absent in many genera. ... (12 Dec 1998) ...