Thanks for the info Harry, these distinctions will help me greatly with my shells. I'm still a little baffled as to the sudden acceptance of 2 species (vs. 1 with a subspecies) without there being some recent paper that makes the argument for the change. ---------------------------------------------------------------------- [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. ----------------------------------------------------------------------