13925385 - The image presents Fragilaria sp., a kind of diatoms against Batrachospermum, a kind of red algae, photographed through the microscope in polarized light at a magnification of 200X\n13924803 - The image presents Fragilaria sp., a kind of diatoms against Batrachospermum, a kind of red algae, photographed through the microscope in polarized light at a magnification of 200X\n13924764 - The image presents Batrachospermum sp., a kind of red algae, photographed through the microscope in polarized light at a magnification of 200X\n13924602 - The image presents Fragilaria sp., a kind of diatoms and Batrachospermum sp., a kind of red algae, photographed through the microscope in polarized light at a magnification of 200X\n13925399 - The image presents Batrachospermum sp., a kind of red algae, and FRagilaria sp., a kind of diatoms, photographed through the microscope in polarized light and dark field at a magnification of 100X\n13924902 - The image presents Batrachospermum sp., a kind of red algae and some kind of diatoms photographed through the microscope in slightly polarized light at a magnification of 200X\n13925530 - The image presents various algae (Fragilaria sp., a kind of diatoms, Batrachospermum sp., a kind of red algae and filamentous green algae) photographed through the microscope in slightly polarized light at a magnification of 200X\n13924544 - The image presents Batrachospermum sp., a kind of red algae and Fragilaria sp., a kind of diatoms, photographed through the microscope in polarized light at a magnification of 200X\n14352182 - Red and green algae-covered snow on Petermann Island, Antarctica, Southern Ocean, Polar Regions