Chlamydaster laciniatus
Chlamydaster laciniatus, nucleus visible

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?

Chlamydaster laciniatus
Chlamydaster laciniatus, Spiegelplas, The Netherlands.

Chlamydaster laciniatus

Chlamydaster laciniatus
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