 
 
Chlorophyceae: 
Volvocales: Volvocaceae
Volvocida: Volvocina: Volvocidae
Pandorina morum
(Müller) Bory, 1824
|  Species: Cells 8-17 μm; 
colony 20-50 μm to 250 μm; 
16 cells as a tight sphere within clear matrix 
(How to know the protozoa, 1979).  
Colony barrel-shaped, 8- or 16-celled; cells wedge-shaped; chloroplast longitudinally striated; 
colony 20-42 μm across, 60 μm 
long; cells 8-17 μm diam. (Illustrated Guide, 1985). 
Sexual reproduction by isogamy 
(An Illustrated Guide to Freshwater Zooplankton in Japan, 2000).  
Sexual reproduction by iso- or anisogamy 
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983). | 
Pandorina morum (Müller) Bory, 
colony 40 μm long, 35 μm wide, 
x 640, Oh-asoh (very close to Ara-kawa), Kumagaya city, Saitama Pref., Japan, February 29, 2004 by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
 
Pandorina morum (Müller) Bory, stock Skmo-4, axenic culture with KCM & Hyponex (April 21 to May 21, 2004), 
cell body  μm long,  μm wide, 
x 640, Oh-asoh (very close to Ara-kawa), Kumagaya city, Saitama Pref., Japan, February 29, 2004 by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
Pandorina, stock Skmo-4, axenic culture with KCM & Hyponex (April 21 to May 21, 2004), 
juvenile colony 56 μm long, 45 μm wide, 
x 640, Oh-asoh (very close to Ara-kawa), Kumagaya city, Saitama Pref., Japan, February 29, 2004 by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
Mature colony 80 μm in diam., cell body 66 μm in diam., x 640
 
 
 
 
Daughter colonies, x 640
 
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