Dear Nancy et al;-
    Populations DO change. It's called evolution. (evilution by some). Sometimes
a population will change because the change is beneficial. It may help the
critter survive. But also sometimes a change may take place in a limited
population that is merely NON-destructive. Neutral. I imagine a lot of
decorations on shells fit that catagory.
        Art

Nancy Galdo wrote:

> Thanks, Robert, for telling me about the picture in Florida's Fabulous
> Seashells.  The shape in the book sure looks like what I found but the color
> of the ones I found yesterday were chocolate brown and the animal of the one
> live-taken was dark, not cream-colored.  The apertures are almost the color
> of the Knobbed Whelk on the next page.
>
> The one I have from the 80's is pure orange over the entire shell except for
> the white stripe.
>
> Why is it that I can't find any reference to this species in any of my books?
>  The only place I found the name was in Rice's price book.
>
> Thanks for the info everyone!
>
> Nancy Galdo