I would like to thank those who provided comments and photos in response to
my post about Florida Geukensia.  The references noted by Dr. Leal are
providing some difficult, but insightful reading.  I guess I'm going to have
to understand cladistics.  I'm still trying to determine which ancestor is
my ancestor who is not the ancestor of my sister.  Appears formidable for
this old dog.

I have added everyone's observations to the presentation of G. granosissima
with some illustrations based upon Dr. Leal's comments.  And, since I.
recurvum may be a nested Geukensia, I created a presentation of I. recurvum
to clear up my confusion.

http://z14.invisionfree.com/Conchologist_Forum/index.php?showtopic=1828

As always, any comments and additional photos would be very welcome.  I
wonder if others have found I. recurvum to have become as scarce in Florida
as I have.  Anyone found it in the Keys?????????

Marlo
merritt island, fl
Visit my website: Let's Talk Seashells
<http://s14.invisionfree.com/Conchologist_Forum/index.php?s=561483d184897208
19ac86b139d3e075&act=site>
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