Photo of <i><a href="//commons.wikimedia.org/wiki/Bithynia_tentaculata" title="Bithynia tentaculata">Bithynia tentaculata</a></i>. Scale in mm. Locality: Schleswig-Holstein, Alster near Wurksfelder Mühle. Date: 01-April-1998.
<a rel="nofollow" class="external text" href="http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/collaborator?id=7">Francisco Welter Schultes</a>
Taken in August 2006
<a rel="nofollow" class="external free" href="http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/picture?id=868">http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/picture?id=868</a> (Accessed 24-April-2007)