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Zoomastigophora: Rhizomastigida
Xenophyophorea: Pelobiontida: Mastigamoebidae:

Mastigamoeba longfilum
Stokes

Mastigamoeba Genus: Monomastigote, uninucleate, with finger-like pseudopodia; flagellum long and connected with nucleus (Kudo, 1966).
Species: 28 μm long when extended; elongate, tranparent; flagellum twice body length; pseudopods few short; contractile vacuole anterior (Kudo, 1966).
Similar genus -->> Mastigella; Mastigina

Mastigamoeba longfilum, similar to M. longifilum but flagellum shorter, contractile vacuole posterior, flagellate state, cell body 31-46 μm long, 8 μm wide, flagellum 31-62 μm long, x 400, x 640, Shitami Oike, Higashi-hiroshima, Hiroshima Pref., Japan, collected October 1998, photo March 1999 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Mastigamoeba Mastigamoeba Mastigamoeba Mastigamoeba
Mastigamoeba Mastigamoeba Mastigamoeba Mastigamoeba
Mastigamoeba Mastigamoeba Mastigamoeba
Turning around flagellum, cell body 22 μm long, 8 μm wide, flagellum 62 μm long,
Mastigamoeba Mastigamoeba Mastigamoeba Mastigamoeba
Mastigamoeba Mastigamoeba Mastigamoeba

Mastigamoeba aspera Schulze: Locomotive 150-200 μm long, 50 μm wide; during locomotin elongate and narrowed anteriorly, posterior end rounded or lobed; pseudopods slender, straight; two contractile vacuoles (Kudo, 1966).

* Mastigamoeba longifilum Stokes: 28 μm long when extended; elongate, tranparent; flagellum twice body length; pseudopods few short; contractile vacuole anterior (Kudo, 1966).

Mastigamoeba setosa (Goldschmidt): Up to 140 μm long (Kudo, 1966).

Mastigamoeba hylae (Frenzel): In the hind-gut of the tadpoles of frogs and toads; 80-135 μm long, 21-31 μm wide; flagellum about 10 μm (Kuod, 1966).

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