Harry, To answer your question, ITIS stands for the Integrated Taxonomic Information System. It can be found on the web at: http://www.itis.usda.gov/ Thanks very much for your reply. Stan ---------------------------------------------------------------------- [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. ----------------------------------------------------------------------