Taxacom: question on taxonomic authority

Sun Jan 14 13:13:58 CST 2024

A new combination is defined in the Code Glossary as:
"The first combination of a generic name and a previously established species-group name."

Changes in rank from species to subspecies (or vice versa) will not qualify as new combinations as these changes do not involve the combination with the generic name.

/Thomas

-----Original Message-----
From: Taxacom <taxacom-bounces at lists.ku.edu> On Behalf Of Gianluca Polgar via Taxacom
Sent: 14. januar 2024 20:06
To: Adam Cotton <thaibaggie at gmail.com>
Cc: taxacom at lists.ku.edu
Subject: Re: Taxacom: question on taxonomic authority

ok, so is Taenioides gracilis cirratus (Blyth, 1860) a *new combination* made with a species name (Am. cirratus Blyth, 1860) turned into a subspecies?

G

--
Gianluca Polgar Ph.D.
Evolutionary ecologist
Università degli Studi della Tuscia
DIBAF, Via S. Camillo de Lellis, snc
01100 - Viterbo, Italy

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On Sun, 14 Jan 2024 at 18:27, Adam Cotton via Taxacom <taxacom at lists.ku.edu>
wrote:

> On 15/01/2024 00:01, Gianluca Polgar via Taxacom wrote:
> > Dear all,
> >
> > I'm not an expert of the ICZN: I tried to look for an answer to my
> question
> > in the Code, to no avail.
> > The following taxa belong now to the genus Taenioides (new 
> > combinations
> or
> > original descriptions):
> >
> >     - Amblyopus gracilis Valenciennes, in Cuvier & Valenciennes, 1837
> >     - Amblyopus cirratus Blyth, 1860
> >     - Leme mordax De Vis, 1883
> >     - Taenioides snyderi Jordan & Hubbs, 1925
> >
> > Tomiyama (1936) considered Taenioides cirratus (Blyth, 1860) as a 
> > subspecies of Taenioides gracilis (Valenciennes, 1837), and 
> > synonymized this subspecies with Taenioides mordax (De Vis, 1883) 
> > and Taenioides snyderi Jordan & Hubbs, 1925.
> >
> > Tomiyama (1936) named this subspecies *Taenioides gracilis cirratus
> (Blyth*
> > ).
> >
> > The taxonomic authority reported by Tomiyama (1936) (Blyth) looks 
> > very weird to me.
> > His subspecies is a new taxon, but he used a name of a valid taxon
> > (cirratus) to form the subspecies. In my opinion, he should have 
> > named
> the
> > subspecies *Ta. gracilis xxx Tomiyama, 1936*, synonymizing it with Ta.
> > cirratus and the other taxa.
> >
> > Any suggestions? What do you think the taxonomic authority of  
> > Taenioides gracilis cirratus should be? What does the Code prescribe in such cases?
> >
> > Sincerely,
> > Gianluca
>
> It seems perfectly Code compliant to me.
>
> Tomiyama (1936) treated cirratus Blyth, 1860 as a subspecies of 
> Taenioides gracilis (Valenciennes, 1837) - the oldest available name 
> for the species - and as such the name cirratus retains the authorship 
> Blyth, 1860 when treated as a subspecies rather than a species. As far 
> as I can understand from the above Tomiyama (1936) did not describe a 
> new taxon.
>
> The correct name for the taxon is Taenioides gracilis cirratus (Blyth, 
> 1860) as stated by Tomiyama (1936).
>
> Adam.
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