I have added pictures from the Danube National Park near Vienna.

 http://ipp.boku.ac.at/private/wf/Donau/Nationalpark_01.html

More pictures about the molluscs from this area following in the next
days.

greetings

Wolfgang FischerWolfgang Fischer
Institut fuer Pflanzenbau u. Pflanzenzuechtung (IPP)
Universitaet fuer Bodenkultur
Gregor Mendel Str. 33
1180 Wien
AUSTRIA

http://ipp.boku.ac.at/private/wf/index.html
E-mail: [log in to unmask]
   Fax: ++43 1 47654-3342
   Tel: ++43 1 47654-3307