Harry, Ayden and Kurt,

Thank you for your information.

I will check out the umbilicus of these specimens but, based on locality
alone, it looks like they are all cereolus.  As to the variation in
size, I hve about 100 specimens so it might be worthwhile to do an
analysis of the group.  Based on a quick visual survey, there seem to be
two very distinct size ranges.  Aydin, I will report back after I find
the time to sit down and measure them all.

Thanks again,


Phil Liff-Grieff
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La Crescenta, California

PS  Once again, Conch-L comes through with flying colors- even for us
land snail types!