Phyllomitus salinus Lackey, 1940. Cells are about 12 microns long and 5 microns wide. This small fonn is very active. Typically elongate, cylindrical, metabolic, with 2 flagella emerging from a slight anterior depression. The trailing flagellum is about two-thirds body length, the anterior is about one and one half body length. Nucleus median, cytoplasm clear, granular, a few small spheres sometimes present. Nutrition and reproduction not reported. It also has shorter flagella and a less pronounced mouth region than P. undulans.
