Polarised light micrograph of an amoeba (shiny) and Batrachospermum sp. red algae. An amoeba is a simple eukaryotic organism that moves in a characteristic crawling fashion. Typically, amoebas are found in freshwater environments. Batrachospermum algae are found in freshwater environments. It has long, branched filaments, resembling beads on a string. Magnification: 186x when printed at 10 centimetres wide.