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

 Pteromonas aculeata
Lemmermann 1900

Pteromonas Species: Sheath 34-35 μm long, 19-37 μm wide, 8.5-15 μm thick (Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983). Sheath 23-30 μm long, 20-25 μm wide; cell body ellipsoidal, 17-21 μm long, 9-15 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

Pteromonas aculeata Lemmermann ?, cell body μm long, μm wide, x 640, rice field, Shimo-muneoka, Shiki city, Saitama Pref., Japan, October 24, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Lobomonas Lobomonas Lobomonas

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