Varicospira tyleri is not rare at all.......
It was the most common Varicospira found during the Siboga expedition.
 
Gijs C. Kronenberg
 
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> Van: Guido Poppe <[log in to unmask]>
> Aan: [log in to unmask]
> Onderwerp: Re: Varicospira cancellata?
> Datum: maandag 8 februari 1999 15:52
>
> >Hi David,
> >
> >Thanks for responding. I'm unclear as to what you mean by "innerside of
> >mouth". Are you referring to the lip (labial) itself, to the inside of
the
> >aperture, or the inner lip (parietal wall)? Also, what does the
posterior
> >siphonal canal look like in V. tyleri? Is it long as in cancellata,
short and
> >recurved as in crispata, or different from both?
> >
> >Thanks,
> >Ken Zentzis
> >Wichita, Kansas
> >
> >David Monsecour wrote:
> >>
> >> Dear Ken,
> >>
> >> There is a third species in this genus: V. tyleri. If those four
shells
> >> have a smooth innerside of the mouth, you will be a very lucky boy (I
have
> >> been looking for tyleri for more than 3 years now, and never managed
to
> >> get hold of one, although I have been through hundreds of crispata and
> >> cancellata to check whether a single tyleri would have slipped in).
> >> Very interested to see one of these four.
> >>
> >> I hope this helps you out,
> >>
> >> David
>
> Hello everybody,
>
> yes, there are at least three. In older literature there are 4. Tyleri is
> the most difficult to get. The other one I never saw is speciosa H. & A.
> Adams.
>
> Tryon (1885):
>
>
> "Shell reticulated, more lanceolate than R. cancellata, not ending
> atneriorly in a recurved beak, with the varix of the outer lip plain
> externally, and with the posterior canal of the aperture faintly devloped
> and only extending as far as the penultimate whorl. Length, 1 inch.
> Hab unknown. Unfigured. Is it R. crispata ?  "
>
> For tyleri H. & A. Adams,
>
> he writes:
>
> "Cancellated, posterior canal extending to the third whorl and curved,
> outer lip corrugately plicate within, with an anterior, conspicuous,
sharp
> tooth; yellowish with four chestnut bands. Length, 21 mill. Unfigured.
> China Sea"
>
>
> Guido
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> Guido
>
> Visit Conchology, with over 50000 names with author, 3800 indicated type
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>
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