Genus: Test more or less flask-shaped, with more or less neck (Illustrated Guide, 1985).
Species: Test 80-160 μm long, 40-60 μm wide;
(Cash, British Freshwater Rhizopoda and Heliozoa II, 1909).
Nebela barbata Leidy,
test 103 μm long, 46 μm wide, L/W=2.2,
pseudostome 18 μm wide,
x 640, No.7, Oh-numa marsh, Akita-Hachimantai, Kazuno city, Akita Pref., Japan, September 21, 2007 by Y. Tsukii
31 μm
63 μm
94 μm; x 640