 
 
| Family: Body often reniform; with ciliary rows making asymmetrical patterns; 
division within reproductive cysts (Kudo,1966). Genus: Like Colpoda, but with larger mouth, and a large postoral vesicle (How to know the protozoa, 1979). Oral cavity expanded broadly to left side (Illustrated Guide, 1985). 
 | 
Similar genus --> > Colpoda;

B. vorax
90 x 63 μm
Sashi-ohgi
Saitama, 2002
