Hallo Michael, and all try this side: http://www.mnhn.fr/base/malaco.html I'm sorry i made a mistake There are three recnet Mactras in Europe Mactra stultorum, Mactra glauca, Mactra olorina Philippi 1846 Mactra cinerea is a Synonym of Mactra stultorum. Mactra corallina is a synonym of Mactra glauca Best regards Wolfgang Wolfgang Fischer Institut fuer Pflanzenbau u. Pflanzenzuechtung 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