Glenn,
 
Thank you, I think I know what you mean now.  I was thinking of scalariform as
unattached whorls like an Epitonium scalare or Trigonostoma milleri which was hard
to imagine with a Tibia.  However, as you define it now, I understand and see what
you mean with this family.  Indeed, many of them could be driven up with a vehicle
as long as it was either a really small car or a really big shell.  Good luck
finding those obscure Tibias,
 
Tom Eichhorst in New Mexico, USA
 
wtolman wrote:
 
> HI, Glenn again fine and gem are turms dealers use for grades of shells with
> gem being the best grade . Scalariform is like a ladder or steps so Webster
> says. the swirls on the outside are on 90 degree angles so when the shell is
> stood on end you have a flat serfice to climb instead of a rounded edge just
> like this L . If the shell were large you could walk right up it or drive a
> car up it with no rounded shoulder.I hope this answers it for you.      I have
> a scanner but no picture to put in it. If you want to send me your snail mail
> address I would be glad to make a drawing for you.                     Best
> Regards GLENN TOLMAN.