Summary[edit] Description: English: Ancylus fluviatilis from Božička river (SE Serbia). Date: 9 October 2012, 21:12:14. Source: Own work. Author: Wlodzimierz. : This media file was created within the Wiki Serbia biodiversity project. Licensing[edit] : This file is licensed under the Creative CommonsAttribution-Share Alike 4.0 International license.:. https://creativecommons.org/licenses/by-sa/4.0 CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue.