P. or N. toae

New cichlid species and taxonomy
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Philippe Burnel
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Re: P. or N. toae

Post by Philippe Burnel » Mon Oct 27, 2014 1:55 am

Rico Morgenstern wrote:If we, on the other hand, place both species in one genus, the names Neolamprologus and Paleolamprologus become synonyms. Both have published in the same work, i.e. at the same date, so none has automatically priority over the other.
Neolamprologus has priority because it's the first one published in the publication.
If Paleolamprologus has been described one page before Neolamprologus, It would be the onte to use.


Rico Morgenstern
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Re: P. or N. toae

Post by Rico Morgenstern » Mon Oct 27, 2014 10:48 am

Not quite correct Philippe! Although it sounds logical at the first glance, "page priority" is a myth. However, the principle of priority says that (usually) the oldest available name is the valid one. Of two names published in the same work nobody can say which one is older since this is determined solely from the date of publication. Names published in the same work (unless issued in parts) have logically the same date of publication.

See also here:

http://iczn.org/content/there-such-thin ... y%E2%80%9D

There have been attempts to introduce a rule for page or line priority in the 1940s or 50s, but it has been abandoned in favor of the first reviser principle already before the publication of the first 'modern' Code (1961).
Rico Morgenstern wrote: Poll (1986) has fixed, as the First Reviser (Art. 24.1).....
Sorry, a typing error, actually it should read "Art. 24.2".

http://www.nhm.ac.uk/hosted-sites/iczn/ ... 4&nfv=true

Poll (1986) was the first to synonymize the simultaneously published generic names Neolamprologus and Paleolamprologus (and Variabilichromis) and selected Neolamprologus as the valid name. The latter has priority on account of this alone, for whatever reason Poll has chosen that name.

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Re: P. or N. toae

Post by DRE » Wed Oct 29, 2014 9:54 pm

Then am I following correctly then assuming Neolamprologus is the best name to use?
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Re: P. or N. toae

Post by Benoit » Fri Dec 05, 2014 2:02 am

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