The quadvar split from the splivar. Another mutation caused them to again double their number of cells. They now reproduce by growing a bud-like cell attached to the middle cell of the front trio, which will later break off, and grow its extra three cells and "tail". They move through the water by using their fan-like flagellum.
Living Relatives (click to show/hide)
These are randomly selected, and organized from lowest to highest shared taxon. (This may correspond to similarity more than actual relation)
