For James and others who may have the same problem, let me refer
you to my article in HSN, January 1995, Pg. 9. If you chose not to look
it up, it's about giving a new name to what you believe to be a new
species.
I've also been trying to find Norm Paschall's great article on the
27? some names already given to E. lamellosum. Our hobby (scientific
study) is full of examples of multi-named mollusks.
Art