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Thu, 17 Jun 1999 04:06:17 +0200 |
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Scott E Jordan wrote:
>
> Is there a reliable way to differentiate Cymbium cucumis Roeding, 1798
> from Cymbium cymbium, L., based solely on shell morphology? I can't
> tell looking at Poppe and Goto.
>
> Regards,
>
> Scott Jordan
T.E Eichhorst's answer is complete. Note that in most specimens
C.cucumis have three columellar plaits and a rusty color, C.cymbium only
two and a greyish color.We can also observe that Poppe & Goto pictures
show likely two specimens of the same species: C.cucumis!
In this genus, we have many transitional forms, the limits of
specification is not always defined and a deep Revision is needed.
Regards, Pat
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