Unidentified sp. μm Basho-no-yakata Kurobane Tochigi, 2001	Unidentified sp. μm Ogose town Saitama, 2003	Unidentified sp. μm Omine-numa Tsukiyono Gunma, 2003	Cysts ? μm Karakemi marsh Yasaka Nagano, 2005
Cysts ? μm Karakemi marsh Yasaka Nagano, 2006