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Nassophorea: Microthoracida: Microthoracidae

 Leptopharynx costatus
Mermod, 1914
Syn. Trichopelma sphagnetorum (Levander, 1900)

Leptopharynx Genus:
Species:
Similar Genus ->> Drepanomonas; Kreyella; Microthorax;

Leptopharynx costatus, cell body 36 μm long, 23 μm wide, x 640, a pond near Asami-numa (Azami-numa), Iwajuku, Kasakake town, Gunma Pref., Japan, October 2001 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Microthorax Microthorax

M. simulans Kahl: 30-35 μm long (Kudo, 1966). Body laterally compressed; 30-35 μm long; several ridges on left side; 3 rows of cilia & cytostome on right side; cytostome post-central; with curved ectoplasmic lip bearing a small undulating membrane on the inner side; two contractile vacuoles (How to know the protozoa, 1979).

M. sulcatus Englemann, 1862: 30-40 μm long; a single macronucleus; two contractile vacuoles (Carey, 1992).

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