Lobosea
:
Testacealobosia
: Arcellinida: Arcellidae
Arcella
sp.
Ehrenberg, 1832
Genus: Test
variable
, chitinoid;
binucleate
(Illustrated Guide, 1985).
Species:
Arcella
sp., pseudostome slit-like, x 400, x 640, Uruguay, November 1999, photo by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
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