Family:
Genus: Test chitinous, coloured greyish-rose or deep purple, nearly allways rough with adhering sand-grains; pseudostome narrow, elliptic, notched in lateral view, frontal view of pseudostome more or less convex or truncated, with rounded corners; (Cash, The British Freshwater Rhizopoda and Heliozoa vol. II, 1909).

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H. petricola: xxxxx
H. petricola v. major 106-125 x μm Hikage marsh Shiga highland Nagano, 2005	H. petricola ? or H. sylvatica ? 130 x 80 μm Hikage marsh Shiga highland Nagano, 2006	H. petricola v. major 130-140 x μm Tanohara marsh Shiga highland Nagano, 2005	H. petricola ? v. major 122 x 72 μm Tanohara marsh Shiga highland Nagano, 2006
H. petricola ? v. major 110 x 60 μm Omine-numa Minakami Gunma, 2006	H. petricola ? v. major ? μm Yokotashiro 1 Katashina Gunma, 2007	H. petricola ? v. major 120 x 90 μm Jodo-daira 3 Azuma mountain Fukushima, 2006	H. petricola ? v. major 125 x 75 μm Tanohara marsh 1 Shiga highland Nagano, 2007
H. petricola ? v. major μm Chigo-ike 3 Shiga highland Nagano, 2008	H. petricola ? or H. sylvatica ? μm Shijuhachi-ike 4 Shiga highland Nagano, 2006	H. petricola ? 92 x 73 μm Oyomi marsh Hakuba Nagano, 2006	H. petricola ? 105 x 85 μm Shirakaba-Yachi Komado marsh Fukushima, 2007
H. petricola ? 115,125 x μm Tanohara marsh 1 Shiga highland Nagano, 2007
H. sphagni: xxxxx
H. sphagni ? 138 x 93 μm Hakkoda Gourd line Hakkoda mountain Aomori, 2005	H. sylvatica or H. sphagni ? 120 x 75 μm Tashirodaira m. Hakkoda mountain Aomori, 2005	H. sylvatica or H. sphagni ? μm Oh-numa m.7 Hachimantai Akita, 2007	H. sylvatica or H. sphagni ? 110 x 65 μm Oh-numa m.1 Hachimantai Akita, 2007
H. sylvatica or H. sphagni ? 115 x 75 μm Numa-no-hara m. Madarao highland Niigata, 2005	H. sylvatica or H. sphagni ? 110 x 75 μm Numa-no-hara m. Madarao highland Niigata, 2005
H. sylvatica or H. sphagni ? 125 x 77 μm Midagahara 6 Tate-yama Toyama, 2006	H. sylvatica or H. sphagni ? μm Yokotashiro Katashina Gunma, 2008
H. sylvatica 70 x 45 μm Tanohara marsh Shiga highland Nagano, 2004	H. sylvatica 130 x 78 μm Tanohara marsh 4 Shiga highland Nagano, 2007	H. sylvatica 95 x 52 μm Iroha-numa 2 Zao mountain Yamagata, 2006
Heleopera sp. 87 x 52 μm Nidanuma Tsuchiyu-onsen Fukushima, 2005	Heleopera sp. 83 x 50 μm Tane-ike Togakushi highland Nagano, 2005

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