Family: Scales cylindroid, thick, adjacent or overlapped, test usually with aperture bent to one side.
Genus:

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A. seminulum 103 x 70 μm Kenashitai Hakkoda mountain Aomori, 2005	A. seminulum 85 x 72 μm Yahei-daira m Azuma mountains Aomori, 2007	A. seminulum ? 79 x 63 μm Minami-Zao c.r. Shichigashuku Miyagi, 2007
A. muscorum 45 x 34 μm Hachiman-numa Hachimantai Iwate, 2007	A. muscorum 45 x 32 μm Hakama marsh Madarao highland Yamagata, 2005	A. muscorum 48 x 37 μm Tanohara marsh Shiga highland Nagano, 2006.6	A. muscorum 59 x 39 μm Shijuhachi-ike Shiga highland Nagano, 2006.6
A. muscorum 43 x 34 μm Shijuhachi-ike 5 Shiga highland Nagano, 2006.10	A. muscorum ? 50 x 47 μm Karakemi marsh Omachi Nagano, 2006	A. muscorum 50 x 35 μm Karakemi marsh 5 Omachi Nagano, 2007	A. muscorum μm Chigo-ike m.1 Shiga highland Nagano, 2008
A. muscorum μm Yokotashiro 4 Oze marsh Gunma, 2007	A. muscorum μm Yokotashiro 1 Oze marsh Gunma, 2007	A. muscorum μm Iroha-numa 2 Zao mountain Yamagata, 2008

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