Paolo, You can try this. I think I tried contacting them a year ago and ran into some problems but I hope you have some luck ... http://www.vims.edu/~jeff/crust-l.html http://www.cyto.purdue.edu/hmarchiv/1993/0194.htm This may be of some use as well ... http://fins.actwin.com/lists.html Regards, Paul Monfils ---------------------------------------------------------------------- [log in to unmask] - a forum for informal discussions on molluscs To leave this list, click on the following web link: http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1 Type your email address and name in the appropriate box and click leave the list. ----------------------------------------------------------------------