Dear Listers, The CONQUILIOLOGISTAS DO BRASIL website posted this link: <http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4524282/>, which I think will prove a good read for some of our number. Our forum has treated the topic over the years, e.g., <https://listserv.uga.edu/cgi-bin/wa?A2=ind0111D&L=CONCH-L&P=R4087&X=AABA8C270CBAA7412D&Y=hglee2%40mindspring.com>. Harry ---------------------------------------------------------------------- [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. ----------------------------------------------------------------------