| Volvox aureus; several specimens (= coenobia) of about 0.5mm diameter; with green daughter colonies. The upper coenobium contains orange zygotes (see below). | 
									
									
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										| Volvox aureus; focus plane on the protoplasmatic interconnections between the cells (which are lacking in Volvox tertius). In contrast to Volvox globator the cells are circular in polar view. | 
									
									
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										| Volvox aureus; the daughter colonies are leaving the "mother" | 
									
									
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										| Volvox aureus; the zygotes as the result of oogamy are orange and covered with a membrane (see below) | 
									
									
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										| Volvox aureus; the zygotes are covered with a membrane. | 
									
									
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										| Volvox aureus; embryos in the stage of inversion. | 
									
									
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									  | Volvox aureus; embryos in the stage of inversion (Detail). | 
								  
									
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									  | Volvox aureus; may be parasitized by rotifers like Cephalodella volvocicola or Ascomorphella volvocicola | 
								  
									
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