In January I've made a beautiful trip through Patagonia, Argentina. In the mountains near the village of El Chalten I took a sample from sediment in a cold stream. At home I made some wet mounts and kept them in a moist chamber. After three days I found a number of specimens of this rare amoeboid alga, Chlamydomyxa labyrinthuloides. You can find more information at www.arcella.nl/chlamydomyxa-labyrinthuloides.