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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).

Frenzelina sp. ?? or Gromia ?, test 25 μm long, 17 μm wide, L/W=1.5, pseudostome μm wide, x 640, Akebono marsh (or bog), Nidanuma (Nitanuma), Tsuchiyu-onsen, Fukushima city, Fukushima Pref., Japan, October 28, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
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Test 33 μm long, 21 μm wide, L/W=1.6, pseudostome μm wide, x 640
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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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