For those interested in the cowries, The previously mentioned article on Cypraea helvola at http://www.cowrys.org/research/hlvteeth.htm has been updated with some more pertinent graphs with Chi-squared values to aid in judging the acceptability (or rejectability) to Gaussian expectations. This should be the article's final form since the labial tooth count, columellar tooth count and the difference of these two have all been addressed. Aloha, makuabob (a.k.a., Bob Dayle) _________________________________________________________________ Join the world’s largest e-mail service with MSN Hotmail. http://www.hotmail.com