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Chlorophyceae: Chlamydomonadales (Volvocales): Phacotaceae
Volvocida: Chlamydomonadina: Phacotidae

 Pteromonas multipyrenoidea
Iyengar 1981

Pteromonas Genus: Unicellular; two equal-length flagella emerging from anterior end; cell body flat, broad ovoidal, lateral view spindle-shaped, within a gelatinous sheath quadrangular in shape; a single chloroplast plate-like, with 4-6 pyrenoids (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species:

Pteromonas multipyrenoidea yengar, cell body 20 μm long, 10 μm wide, L/W=2.0, a gelatinous sheath 22 μm long, 17 μm wide, L/W=, x 640, MotoNarita canal near Sakitama-kofun park (Sakitama tumuli park), Gyoda city, Saitama Pref., Japan, March 11, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Pteromonas Pteromonas Pteromonas Pteromonas

Images of collecting locality: MotoNarita canal near Sakitama-kofun park (Sakitama tumuli park), Gyoda city, Saitama Pref., Japan, March 11, 2006 by Y. Tsukii

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