Species: Cell body 200-300 μm long when fully extended; a single macronucleus and several micronuclei; cortical and cytoplasmic granules yellow-brown or red-orange coloured; with symbiotic green algae (Foissner and Wölfl, 1994).

31 μm 63 μm 94 μm; x 640

Images of collecting locality: Shibakusadaira (marsh), Zao mountain, Shichigashuku town, Miyagi Pref., Japan, August 17, 2007 by Y. Tsukii