Family: Chydoridae
Subfamily: Chydorinae
Chydorus C. gibbus ? μm Japan, 199?	Chydorus C. gibbus ? μm Ikoi-no-mori park Fuchu Tokyo, 2004	Chydorus C. sphaericus ? μm Yamagata, 1999	Chydorus C. sphaericus ? 390 x μm Karasu river Takasaki Gunma, 2004
Chydorus C. sphaericus ? 330 x 290 μm Watarase wetland Oyama Tochigi, 2005	Chydorus μm Minami-Zao c.r. Shichigashuku Miyagi, 2007	Chydorus sp. μm Shirakawa Fukushima, 1999	Chydorus sp. 330 x 216 μm Kannon-numa f.p. Shimogo Fukushima, 2005
Chydorus sp. 228 x 140 μm Seseragi park Fujioka Gunma, 2004	Chydorus sp. 155 x 100 μm Ushidome-ike Norikura highland Nagano, 2005	Chydorus sp. μm Shimo-no-koike Shiga highland Nagano, 2007
Subfamily: Aloninae
Leydigia sp. μm Shiba river Owada Park Saitama, 2005	Alona sp. A. affinis ? μm Fukasaku-gawa Y. Saitama, 2002	Alona sp. A. rectangula ? μm Kisuge konuma Shimogo Fukushima, 2005
Family: Sididae
Sida S. crystallina μm Mashiko Tochigi, 1999	Sida S. crystallina μm Saitama, 2000
Unidentified
Unidentified sp. 340 x μm Konuma Sakado Saitama, 2004

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