Family: Test round, more or less oval (Illustrated Guide, 1985).
Genus: Test elastic, membranous, in a firm cup-shaped outer test (Illustrated Guide, 1985).
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F. reniformis
μm
Japan, 1998
F. reniformis
25 x 17 μm
Akebono marsh
Tsuchiyu-onsen
Fukushima, 2005
F. reniformis
μm
Tennoh
Tessei-cho
Okayama, 2005
F. reniformis
20 x 15 μm
Yukawa-numa
Nishiwaga
Iwate, 2007
F. reniformis
μm
near Omine Mt.
Minakami
Gunma, 2007
F. reniformis
μm
near route 272
Minakami
Gunma, 2007
F. reniformis
μm
Kannon-numa 10
Shimogo
Fukushima, 2008
F. reniformis
μm
Kannon-numa 10
Shimogo
Fukushima, 2008
F. reniformis
μm
Iyari marsh
Omachi
Nagano, 2008