Marco, others,


Some little known facts from thew 1999 edition of the International Code of
Zoological Nomenclature:  sometimes a junior primary homonym remains
available, notably when the junior name is conserved, or the senior one
suppressed (ICZN art.81), and also when the senior homonym has not been used
as a valid name after 1899 and the junior homonym has been used for a
particular taxon in at least 25 works published by at least 10 authors in
the preceding 50 years over a period of more than 10 years (see ICZN art
23.9.1).
This sound complicated, but it is a rather simple and effective method to
maintain stability in the names of "well known" species (and thus it
contains a definition of what is to be regarded as well known, and what
names as little known or unknown).
In a way, there has been a reversal of order. In order to maintain a stable
an universal nomenclature in zoology, former editions of the Code as a rule
placed seniority above stability, whereas since 1999 stability supersedes
seniority.


Marien Faber
www.mollus.nl





----- Original Message -----
From: "Marco Oliverio" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, November 17, 2004 10:14 AM
Subject: Re: any news from east atantic naticidae ?


> I'm sorry, but  Nerita punctata Karsten, 1789 is a primary (junior)
homonym
> Nerita punctata O.F. Mueller, 1776. Primary homonymy is when two identical
> binomen are used in the original introductions (Nerita punctata in both
> Karsten's and Mueller's works). This is the easiest case to deal with.
> Thus, Karsten's binome cannot be used for that common Mediterranean
species.
>
>
>
> At 15.11 16/11/2004 +0100, Cristian Ruiz Altaba
> <[log in to unmask]> wrote:
> >Just one question: if Nerita punctata Karsten, 1789 is transferred to
> >Naticarius, then it is no longer a homonym of Nerita punctata 0.F.Müller,
> >1776, so Naticarius punctatus (Karsten, 1789) would turn out to be a
junior
> >synonym of Naticarius stercusmuscarum (Gmelin, 1791)?  Even if this is
the
> >case, the current Code of Zoological Nomenclature strives NOT to change
> >current widespread usage in favor of byzarre resurrected names -this is
> >done through reversal of precedence.  Any opinions?
>
>
> =========================================================
> Marco Oliverio - Evolutionary Biology PhD
> Research Scientist
>
> Dipartimento di Biologia Animale e dell'Uomo
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>
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