572 
INFUSORIA. 
Section I. 
With a membranaceous body, nearly without thickness, de¬ 
pressed, or concave.—Its genera are, ]. Bursaria ; 2. Kolpoda; 
3. Paramecium ; 4. Cyclidium ; and, 5. Gonium. 
Section II. 
The body of perceptible thickness.—Its genera are, 6. Vi¬ 
brio; 7. Enchelis ; 8. Proteus; 9. Volvox; and, 
Genus 10.—MONAS.— Lamarck . 
Generic Character .—With an extremely minute, simple, trans¬ 
parent body, in the form of a point. 
