[Taxacom] Iapyx vs. Japyx (etc.) in Diplura

Sat Apr 11 10:46:29 CDT 2020

Concerning another aspect of Geoff's contribution:
I and J are independent letters. Genus-group names differing by initial 
I and J cannot be regarded as variants of the same name (Arts. 11.2, 
56.2). As Thomas wrote, Japyx is a subsequent misspelling, either an 
unjustified emendation or an incorrect spubsequent spelling (or both).

In some cases in Classical Latin publications the use of J and I 
depended on typesetting conventions, occasionally also after the 1850s. 
This has subsequently been automatically corrected to Postclassical 
spelling.

Genus-group names originally established as Jberellus, Jrcinia, 
Jschnognatha or Jnopsis are unanimously considered as incorrect original 
spellings, and have been corrected to Iberellus, Ircinia, Ischnognatha 
and Inopsis, without a corresponding rule in the Code. There is 
awareness of covering this gap in the 5th Edition of the Code.
This does not work with Julus, Jochroa or Josioides, which have not 
unanimously been corrected to Iulus, Iochroa or Iosioides.

I see no option to extend this convention for cases like Iapyx/Japyx.

In species-group names the original spelling stands, even if such a name 
looks unusual. Examples are iaponicus, iavanus, maior, iota, iudaica. 
These names are not automatically corrected to japonicus, javanus, 
major, jota, judaica. Independently established names varying only in 
such an initial letter are deemed to be homonyms (Art. 58.3).

Correspondingly, for genus-group names, an original spelling Iapyx 
should also stand, even if this is not very well appreciated in parts of 
the community.
Subsequently established genus-group names based on the assumption that 
Japyx was correct, will stand, such as Afrojapyx, Burmjapyx, Congjapyx 
or Teljapyx.

If Japyx is determined as the correct spelling under the prevailing 
usage rule, subsequently established genus-group names based on the 
assumption that Iapyx was correct, like Silvestriapyx Pages, 1981, will 
also stand.

Best regards
Francisco

Am 11.04.2020 um 13:44 schrieb Thomas Pape via Taxacom:
> Tony:
> Haliday (1864) used only the spelling "Iapyx" and is explicit on both spelling and etymology, which means that a lapsus can be ruled out.
> The spelling "Japyx" must therefore have been introduced by a later author either as an incorrect emendation or as an incorrect subsequent spelling.
> 
> The distinction has some importance as an incorrect emendation would take specific date and authorship and be a junior synonym. An incorrect subsequent spelling that is in prevailing usage and is attributed to the publication of the original spelling is to be preserved and the spelling is deemed to be a correct original spelling (Code Art. 33.3.1).
> 
> I can see that the issue of selecting among the two spellings goes back in time at least to Paclt (1952), who wrote: "So darf z. B. ... ein ursprünglicher Iapyx durch keinen Japyx ersetz werden". Senckenbergiana 33: 358.  [I couldn't find Paclt's work online and got this quote from the footnote shown here: https://www.biodiversitylibrary.org/page/53220317#page/265/mode/1up]
> 
> I share Geoff's impression that "Japyx" is in prevailing usage, but the decision on when to invoke "prevailing usage" is subjective. The definition of prevailing usage used in our Code Glossary is:
> "Of a name: that usage of the name which is adopted by at least a substantial majority of the most recent authors concerned with the relevant taxon, irrespective of how long ago their work was published."
> 
> /Thomas
> 
> 
> -----Original Message-----
> From: Taxacom <taxacom-bounces at mailman.nhm.ku.edu> On Behalf Of Tony Rees via Taxacom
> Sent: 11. april 2020 08:54
> To: taxacom <taxacom at mailman.nhm.ku.edu>
> Subject: [Taxacom] Iapyx vs. Japyx (etc.) in Diplura
> 
> Dear Taxacomers,
> 
> In the Hexapod class (formerly order) Diplura, two forms of the genus name Iapyx Haliday, 1864 are in current use, namely Iapyx and Japyx, same for the family names based on this genus (Iapygidae/Japygidae); Japyx can perhaps be construed either as a lapsus, a subsequent emendation, or a legitimate correction; the name was originally published as
> 
> Haliday, A.H. 1864. *Iapyx,* a new genus of insects belonging to the stirps Thysanura, in the order Neuroptera.
> <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbiodiversity.org.au%2Fafd%2Fpublication%2Fe22adc15-efeb-48c9-b0fe-990dabe813a3&data=02%7C01%7Ctpape%40snm.ku.dk%7Ca6094a433e454fa615da08d7dde52bd4%7Ca3927f91cda14696af898c9f1ceffa91%7C0%7C0%7C637221848676573152&sdata=s8RlLvk5D4RXp6A3pJj9I2GQisaCS67E%2FjzwseQ%2FC%2BQ%3D&reserved=0>
>   *Transactions of the Linnean Society of London* <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbiodiversity.org.au%2Fafd%2Fpublication%2Fa6b0ca4d-471d-4666-96a2-8fee5114bc35&data=02%7C01%7Ctpape%40snm.ku.dk%7Ca6094a433e454fa615da08d7dde52bd4%7Ca3927f91cda14696af898c9f1ceffa91%7C0%7C0%7C637221848676573152&sdata=8NroTl%2BTbWEXNZRSFxRd2ZGbzY7LevxpgiztY8lBdic%3D&reserved=0>
>   *24*: 441-447 .
> 
> In the absence of an ICZN ruling on the matter, are there any rules or precedents to decide which spelling is preferable to use, and/or the technically "correct" one?
> 
> Regards - Tony
> 
> Tony Rees, New South Wales, Australia
> https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fabout.me%2FTonyRees&data=02%7C01%7Ctpape%40snm.ku.dk%7Ca6094a433e454fa615da08d7dde52bd4%7Ca3927f91cda14696af898c9f1ceffa91%7C0%7C0%7C637221848676573152&sdata=%2BSx8mtFJYQCgG7jtw9RzeLAWscURIgHxjxzYLS7bkkM%3D&reserved=0
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