Keywords: Planorbarius corneus (Great Ramshorn Snail), Elst (Gld), the Netherlands.jpg en Planorbarius corneus Great Ramshorn Snail Elst Gld the Netherlands nl Planorbarius corneus Posthoornslak Elst Gld Nederland 2014-08-10 12 00 00 own Bj schoenmakers thumb left 120px 51 9422539008 5 84753081203 cc-zero Planorbarius corneus |