 
 
|  Genus: No flagellate stage; uninulceate (Illustrated Guide, 1985). Species: 
 
 | 
 50 μm
 50 μm
 100 μm
 100 μm
 150 μm; x 400 :
 150 μm; x 400 : 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
 
 
 
 
 
 
 
 
 
 
* Vahlkampfia avara Page, 1967: Round, 10-15 μm; locomotive 15-33 μm long, W/L=1/3; pseudopods, clear, eruptive; uroid temporary; nucleus spherical, 3-6 μm (Illustrated Guide, 1985). Cysts 7-14 μm diam. (How to know the protozoa, 1979).
Vahlkampfia russelli: Locomotive 30-40 μm long, cysts to 20 μm diam. (How to know the protozoa, 1979).
Vahlkampfia magna: Cysts 18-20 μm diam. (How to know the protozoa, 1979).