The Euglenophyta

Most euglenophytes are unicellular flagellates with flagella that arise from a flask-shaped invagination called an ampulla (or reservoir). While there are usually two flagella, one is very short and doesn't usually protrude out of the ampulla. The flagella bear a row of delicate hairs on one side. There are usually numerous paramylon bodies present in the cells. The nucleus contains DNA in the form of condensed chromosomes that are visible even in interphase, and mitosis occurs within the confines of the nuclear membrane. Cells also usually have an eyespot that is not associated with a chloroplast.