Classis: Bivalvia • Ordo: Unionoida • Familia: Unionidae • Genus: Unio • Species: Unio pictorum (Linnaeus, 1758) Right valve of the same specimen I, the copyright...
at URL: https://www.flickr.com/photos/coleoptera-us/4540126717/ operator: Flickr URL: https://live.staticflickr.com/2764/4540126717_a43c6d48a7_o.jpg...
_(4540126717).jpg){kind=link}