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Chlorophyceae: Volvocales: Volvocaceae
Volvocida: Volvocina: Volvocidae

 Volvox globactor
(Linnaeus, 1758) Ehrenberg
Linné 1758 (Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983)
Linnaeus 1758 (John et al. eds. 2002)
Syns.: V. stellata Ehrenberg 1832, V. monoicus Cohn 1875

Volvox Species: 5000-15,000 cells with cytoplasmic connections (Kudo, 1966). Cell body star-shaped, or amoeboid in shape, gelatinous matrix clearly separated from each other; colony consisting of 8000-17000 cells with a thick cytoplasmic connection.

Volvox globactor (Linnaeus, 1758) Ehrenberg, cysts (?) 35 μm in diam., gelatinous sheath 16 μm in thickness (including concal projections), L/W=, x 640, No.2, Kejo-numa, Furukawa-Ono, Osaki city (formerly Furukawa city), Miyagi Pref., Japan, October 29, 2006 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
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Images of collecting locality: No.2, Kejo-numa, Furukawa-Ono, Osaki city (formerly Furukawa city), Miyagi Pref., Japan, October 29, 2006 by Y. Tsukii

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