Flagellates roller.. Of single-celled plant species with two whales living in brackish water

Rotary whales are plant-like vultures.
Most of this single-cell group, with two whips, one perpendicular to the other, helps it move the spiral in the water.
Some members of this group have a thick cell wall of cellulose.
Another group is luminous;
Most rotary whales live in salt water, but some live in fresh water.