Lobosea
:
Testacealobosia
: Arcellinida: Arcellidae
Arcella
dentata
Ehrenberg
Genus: Test
variable
, chitinoid;
binucleate
(Illustrated Guide, 1985).
Group: Discoides (Test flattened; height < 1/2 greatest diam.)
Species:
Arcella dentata
Ehrenberg, test
155
μm long,
145
μm wide, pseudostome
42
μm long,
36
μm wide, x 640, Senjo-ga-hara (marsh), Nikko city, Tochigi Pref., Japan, September 2003 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
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