From the nomenclatorial point of view there are no problems at all.
The shell morphology of this species is so unique: the regular axial
furrows,
that it is impossible to mix it up with one of the other species. Most
closely
related is umbilicata but in that species the axial sculpture is absent.
Best regards, Henk.
----- Original Message -----
From: helmut nisters <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, December 06, 2000 5:15 PM
Subject: AW: Nomenclature in Janthinidae


> Dear Henk
>
> I think Janthina exigua is also a problematic species.
>
> with best shelling greetings
> Helmut
>
> Helmut "Helix" Nisters
> private:
> Franz-Fischer-Str. 46
> A-6020 Innsbruck / Austria / Europe
> phone: 0043 / 512 / 57 32 14
> e-mail: [log in to unmask]
> website: www.netwing.at/nisters
> office:
> Natural History Department of the
> Tiroler Landesmuseum Ferdinandeum Innsbruck
> Feldstrasse 11a
> A-6020 Innsbruck / Austria / Europe
> phone: 0043 / 512 / 58 72 86 - 37
> e-mail: [log in to unmask]
> website: www.tiroler-landesmuseum.at
>
>
> ----------
> > Dear Ed and other Janthina lovers.
> > Currently five species of Janthina are recognized. The names of four
> species
> > are quite stabilizeded:
> > Janthina janthina (Linnaeus, 1758)
> > Janthina exigua (Lamarck, 1816)
> > Janthina umbilicata d'Orbigny, 1840
> > Janthina pallida Thompson, 1841(Thompson used a manuscript name of
Harvey)
> > The nomenclature of the fifth species is problematic.
> > Janthina globosa Swainson, 1822, Janthina prolongata Blainville, 1822
and
> > Janthina nitens (Menke, 1825)
> > are the names usually employed for that species.
> >
> > Ed note that J. violacea Roeding, 1798 and J. balteata Reeve, 1858 are
> junior
> > synonyms of J. janthina.
> >
> > In the genus Recluzia the situation is much more complicated, since a
> modern
> > revision has never been carried out.
> > The following 12 names have been proposed in connection with Recluzia:
> >
> > annamitica Wattabled, 1886
> > bensoni A. Adams, 1861
> > erythraea Jickeli, 1882
> > globosa E. Smith, 1876
> > hargravesii Cox, 1870
> > jehennei Petit de la Saussaye, 1853
> > johnii Holton, 1802
> > lutea Bennett, 1840
> > montrouzieri Souverbie, 1871
> > palmeri (Dall, 1871)
> > rollandiana Petit de la Saussaye, 1853
> > turrita Philippi, 1848
> > A 13th name: petiti Sowerby in Paetel, 1888 is probably a manuscript
name.
> > Most probably only 2-3 circumtropical Recluzia species are hiding among
> these
> > names.
> > Best regards,
> > Henk K. Mienis
> > National Mollusc Collection
> > Dept. Evolution, Systematics & Ecology
> > Hebrew University of Jerusalem
> > IL-91904 Jerusalem, Israel
> > E-mail: [log in to unmask] & [log in to unmask]