Dear Guido et al,

I enjoyed viewing the pics at your web site. What bothers me is that large
Philippine specimen of C. tibiaeformis does not have developed colabral ribs on
ultimate & penultimate whorl while Japanese specimens have colabral ribs on
entire teleoconch. Does it mean that specimens from Japan are not adults or it
is just that I missed-out something from your replies? Or maybe pictured
specimen from the Philippines is another (sub)species/form?

Regards, Milan

> On
> http://www.conchology.be
>
> you can search both species, there are 3 smithi and one tibiaeformis from
> the Philippines next to several of the small type from Japan.


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