Map of Lena River basin, Eastern Siberia, with occurrence of the leech-bryozoan association in a floodplain lake (red dot).

 
 
  Part of: Klass AL, Sokolova SE, Kondakov AV, Bespalaya YV, Gofarov MY, Tomilova AA, Vikhrev IV, Bolotov IN (2018) An example of a possible leech-bryozoan association in freshwater. ZooKeys 794: 23-30. https://doi.org/10.3897/zookeys.794.28088