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Filosea: Gromiida: Gromiina: Pseudodifflugiidae

 Frenzelina sp.
Penard, 1902

Freselina Genus: Test elastic, membranous, in a firm cup-shaped outer test (Illustrated Guide, 1985).
Species:

Frenzelina sp. Penard, clear cup 20 μm across, about 14 μm high, attached debris, test hemispherical 16 μm diam., pseudopods long filose, fresh water, x 400, x 640, Japan, 1998 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Frenzelina Frenzelina Frenzelina

Frenzelina reniformis Penard, 1902: Cup 26-30 μm across, 12-15 high; sac 12-15 μm diam.; test rigid, clear, membranous, hemispherical, a gelatin-filled cup; attached sand granules; pseudostome at end of sac, 3-4 μm, with collar 1 μm high; nucleus spherical, 3 μm, endosome 1.5 μm (Illustrated Guide, 1985).

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