Chlamydaster laciniatus (Penard, 1904) Rainer, 1968
Diagnosis: Cell body surrounded by a fimbriated mucus envelope through which axopods extend. Each cell contains two or three contractile vacuoles, a centrosome and an eccentrically located nucleus with a single nucleolus.
Dimensions: body 15-30 µm.
Ecology: Fresh water. Several types of water. I found this species in oligotrophic lakes and peat bogs.
Remarks: I have collected this species many times, but I’m not convinced of the presence of a mucous layer only. In phase contrast the fimbriated mucous layer seems to be filled with very fine needles, which do not radiate, but give the impression of X-shaped figures (see below). So the question is: Is C. laciniatus a Heterophrys species?