Dear Andrew;-
Your answer at least qualifies my question as: Not too stupid.
The differences appear to be somewhat more subtle than I would have
thought. However it still appears that Latiaxis is distinguishable from
Murex to the naked eye. I can tell one from the other. I just don't know
WHY I can tell one from the other. There may be something about the
general form of each.
I guess we'll have to wait until Gary or Andrew set us straight.
Q-Man