 
 
|  Genus: Oral cavity tubular; deep groove spirals at least once around body (Illustrated Guide, 1985).  
Like Colpodabut peristome is curved; body somewhat twisted 
(How to know the protozoa, 1979). Species: | 
 50 μm
 50 μm
 100 μm
 100 μm
 150 μm; x 400
 150 μm; x 400
 
 
 
 
 
 
 
Tillina canalifera: 
130-200 μm long; 
like Colpoda, but peristome is curved, leads to a 
large vestibule, which leads to the true mouth; body twisted (How to know the protozoa, 
1979). 
Tillina magna: 
To 400 μm long 
(How to know the protozoa, 1979).