drawing of external view of the left valve of <i><a href="//commons.wikimedia.org/w/index.php?title=Pisidium_hibernicum&amp;action=edit&amp;redlink=1" class="new" title="Pisidium hibernicum (page does not exist)">Pisidium hibernicum</a></i>
Ehrmann, Hermann Felix Paul (* 21st December 1868 – † 6th October 1937; Germany)
1933
scanned by <a href="//commons.wikimedia.org/wiki/User:Snek01" title="User:Snek01">User:snek01</a> from Zhadin V. I. (1952). <i>Molljuski presnych i solonovatych vod SSSR</i>. Moscow, page 62. Image number 305. Tranferred to SVG from the file <a href="//commons.wikimedia.org/wiki/File:Pisidium_hibernicum.jpg" title="File:Pisidium hibernicum.jpg">File:Pisidium hibernicum.jpg</a>