Just a quick question, how come the genus Morum was moved from Cassis to
Harpa?  The shells certainly do not match, I have yet to see a parietal
shield on a Harpa and yet most Morum and Cassis have a prominent shield.
 I have also been told the animal does not match between the Harpa and
the Morum.  Was this one of those radula matches?
 
We all live with name changes and family/genus moves, but this one has
always bothered me.  I held out changing my data base on the slim chance
someone would change or at least dispute the move - alas, this morning I
gave up and moved the genus Morum into what had previously been a clean,
short family of harps (with a few Austroharpa thrown in - can't afford
them so I doubt I'll have to worry about them in my database).