Genus: Test more or less flask-shaped, with more or less neck (Illustrated Guide, 1985).
Species: Test 85-90 μm long (Cash, British Freshwater Rhizopoda and Heliozoa II, 1909).

->> Description at WPRNO

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Group: Collaroides: Test ovate or elongate
N. tincta ? 164 x 115 μm L/W=1.4 Tanohara marsh Shiga highland Nagano, 2006	N. tincta ? 137 x 95 μm L/W= Tanohara m.4 Shiga highland Nagano, 2007	N. tincta ? 123 x 98 μm L/W=1.3 Hakkoda Gourd line Hakkoda mountain Aomori, 2005	N. tincta ? 118 x 95 μm L/W=1.2 Kenashitai Hakkoda mountain Aomori, 2005
N. tincta 95 x 70 μm L/W=1.4 Ukishima marsh Tsugaike highland Nagano, 2005	N. tincta 118 x 82 μm L/W=1.4 Ukishima marsh Tsugaike highland Nagano, 2006	N. tincta 83 x 64 μm L/W=1.3 Tenbo marsh Tsugaike highland Nagano, 2005	N. tincta 95 x 71 μm L/W=1.3 Kiba marsh Shiga highland Nagano, 2005
N. tincta ? 158 x 112 μm L/W= Sensho-ga-hara Shizukuishi Iwate, 2007	N. tincta ? μm L/W= Yokotashiro 1 Katashina Gunma, 2007	N. tincta μm L/W= Chigo-ike m Shiga highland Nagano, 2008

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