Flagellate (Urceolus sabulosus ?) with opposite flagella

[WWWW]

A flagellate unknown to me.
It looks a bit like Uceolus sabulosus, but it has two flagella and also lives in a house covered with pebbles.

However, this species has two oppostie flagella and they are not working together.
If the flagella is used at the front, the flagellate moves forward. The flagella at the rear drags behind the body.

When the movement stops, the flagella at the rear becomes active and the direction of movement is reversed.
The old front now becomes the back with a trailing flagella and the flagellate now continues.

[jackieone]

What a beauty! I haven't seen one like that yet under my microscope, so of course I'm interested in what it is...

Thanks for posting this!