Protoctist Genus
- genus Paramecium
Freshwater ciliate with an oval body and long deep oral groove.
- genus Tetrahymena
Protozoa having four membranous ciliary organelles.
- genus Stentor
Trumpet-shaped protozoa with a ciliated spiral feeding funnel.
- genus Vorticella
Ciliated protozoans that have a goblet-shaped body with a retractile stalk.