| Actinosphaerium eichhorni  with highly vacuolized plasma. In this image the separation of the cytoplasm into the highly vacuolated outer ectoplasm and the inner less vacuolated endoplasm is visible. (1) | 
									
									
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									  | Actinosphaerium eichhorni  is a multinucleate protist. The arrowheads point to some of the nuclei. (3) | 
							  
									
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									  | Actinosphaerium eichhorni ; focus plane on some of the axopodia. (1) | 
							  
									
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									  | Actinosphaerium eichhorni; crop of the above image. Detail of an axopodium which consists of an axial rod and a contractile layer of ectoplasm (arrowheads) . In contrast to Actinophrys sol the axopodia terminate at the boundary layer of the ecto-and endoplasm (arrow, right). (1) | 
							  
									
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									  | Actinosphaerium eichhorni. Ecology: is a predator of other small organisms. In this specimen two Colurella-rotifers have been ingested. Also the trophi of a bdelloid rotifer are captured in the orange area. (2) | 
							  
									
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										| Actinosphaerium eichhorni  detail showing the two rotifers. (2) | 
									
									
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									  | Actinosphaerium eichhorni; detail of the first image showing the trophi of the bdelloid rotifer. (2) | 
								  
									
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									        Location (3): Hattingen Wodantal, Heierbergsbach, puddle (click to enlarge) | 
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									        | Habitat (3): detritus | 
								           
									      
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									        | Date: 01.05.2021 (3) | 
								           
									      
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									  | Location: Griendtsveen, NL, Sphagnum-pond (1); Mariaveen, NL, Sphagnum-pond (2);  | 
								  
									
										| Habitat : Detritus (1); (2) | 
									
									
									  | Date: 16.09.2019 (1); 10.12.2018 (2) | 
							  
									
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