Symbiotic relationship of testate amoebae with phototrophic algae (zoochlorellae): (A) Archerella flavum; (B) Hyalosphenia papilio.

 
 
  Part of: Todorov M, Bankov N (2019) An Atlas of Sphagnum-Dwelling Testate Amoebae in Bulgaria. Advanced Books. https://doi.org/10.3897/ab.e38685