Family: Test usually more or less compressed; pseudostome narrowly oval or slit-like.
Genus: Test more or less flask-shaped, with more or less neck (Illustrated Guide, 1985).
Group: Collaroides: Test ovate or elongate.
Species:

->> Description at WPRNO

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N. penardiana 210 x 110 μm Yacho-no-mori Sukawa highland Akita, 2005	N. penardiana 230,235 x μm Sukawa highland Kurikoma mt. Iwate, 2007	N. penardiana 245 x 155 μm Jodo-daira Azuma mountain Fukushima, 2006	N. penardiana 226,230 x μm Yokotashiro 1 Katashina Gunma, 2007
N. penardiana ? or Nebela ? 223 x 123 μm L/W=1.8 Oyomi marsh Hakuba Nagano, 2006	N. penardiana 236 x 125 μm Tanohara marsh Shiga highland Nagano, 2006	N. penardiana ? 190 x 115 μm 190 x 120 μm Tanohara marsh Shiga highland Nagano, 2004	N. penardiana ? or Nebela ? 202 x 120 μm L/W=1.7 Kowashimizu Suwa Nagano, 2005
N. penardiana 220 x 130 μm 205 x 120 μm Kodanuki marsh Fujinomiya Shizuoka, 2006	N. penardiana ? or Nebela ? 175 x 105 μm L/W=1.7 Kodanuki marsh Fujinomiya Shizuoka, 2005	N. penardiana 215 x 118 μm 237 x 122 μm Imou bog 5 Toyohashi Aichi, 2006.9

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