image_list image_listE

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 Linné 1758, colony 250 μm in diam., cell body 5-7 μm in diam., x 200, x 400, x 640, rice field near Happou bus stop, Hakuba village, Nagano Pref., Japan, August 11, 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
Volvox Volvox Volvox Volvox Volvox Volvox Volvox
Colony 414 μm in diam., cell body 5-8 μm in diam., x 200, x 400, x 640
Volvox Volvox Volvox Volvox Volvox Volvox Volvox

Images of collecting locality: Rice field near Happou bus stop, Hakuba village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii

V. aureus Ehrenberg: 1000-1500 cells; with cytoplasmic connections (Kudo, 1966). Cell body ovoid in sphape, gelatinous matrix fused with each other; colony consisting of 1000-4000 cells with 1-3 thin cytoplasmic connections.

V. carteri: Cell body spherical in shape, gelatinous matrix clearly separated from each other; colony consisting of 500-8000 cells without cytoplasmic connections.

* V. globactor Linnaeus: 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.

Please click on images for viewing enlarged.
Copyright Protist Information Server