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Filosea: Gromiida: Gromiina: Gromiidae

 Gromia sp.
Dujardin, 1835

Gromia Genus: Thin test spherical to elongate ellipsoid; pseudostome terminal; many filopodia, branching and anastomosing; many species (Kudo, 1966).
Species:

Gromia sp., test 36 μm long, 30 μm wide, L/W=1.2, pseudostome 1.2 μm wide, x 640, a small pond at Kitamoto nature observatory park, Kitamoto city, Saitama Pref., February 15, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Gromia Gromia Gromia
Test 41 μm long, 33 μm wide, L/W=, pseudostome 1.2 μm wide, x 640
Gromia Gromia Gromia Gromia
Test 40 μm long, 30 μm wide, L/W=, pseudostome 1.3 μm wide, x 640
Gromia Gromia Gromia

Images of collecting locality: a small pond at Kitamoto nature observatory park, Kitamoto city, Saitama Pref., February 15, 2007 by Y. Tsukii

Gromia oviformis Dujardin, 1835: Cell body 150 - 3000 μm diam.; test round to elliptical; pseudostome 1/5 diam of test, with short collar, membranous, clear; pseudopods faintly granuluated, branching, anastomosing; multinucleated (Illustrated guide, 1985).

Gromia fluvials: Cell body 90 - 250 μm diam.; test spherical, smooth, membranous and slightly flexible, or with sparsely distributed siliceous particles; filopodia (pseudopods) anastomosing; cytoplasm yellowish; fresh water (How to know the protozoa, 1979).

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