Hello,
 
The question below was posted a week ago by Nabih Sobhy Abdelhamid. I was
delighted, because I was wondering the same thing, myself. Has there
been a response? I am very interested in the question and any information
on how to discover the difference between juvenile and adult.
 
 
>I am enquiring about the availability of any illustrated comprehensive
literature clarifying the difference between juvenile shells and their adult
>brethrens.
 
Thank you,
 
Elizabeth