| Albertia naidis lives as  endoparasite in the intestinum of Oligochaetes e.g. Nais sp.(arrow). This image shows the anterior part of such a worm that is infested by three parasites: most of the external parasites are peritrich ciliates (Rhabdostyla inclinans). (The arrowhead points to one of several specimens of the rotifer Cephalodella parasitica.)  (2) | 
									
									
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									  | Albertia naidis;: close up of the above specimen. (2) | 
								  
									
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									  | Albertia naidis;: another specimen in the same worm. (2) | 
								  
									
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									  | Albertia naidis, forcipate trophi (2) | 
								  
									
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									  | Albertia naidis , lateral view; isolated specimen from (1) | 
								  
									
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										| Albertia naidis , dorsoventral view. (1) | 
									
									
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										| Albertia naidis , ? juvenile stages? (1); | 
									
									
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										| Location: Hattingen, garden pond (1); Simmelried near Konstanz, sphagnum pond (2) | 
									
									
										| Habitat: parasitic in Nais sp. (1); (2) | 
									
									
										| Date: 01.04.2007 (1); 08.10.2018 (2) | 
									
									
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