Taxacom: Family Chilodontidae - unresolved homonym in Characiformes and Gastropoda? - now solved

[Francisco Welter-Schultes]

Dear Tony,

The statement "Chilodontidae Bronn, 1859 (Ciliophora) is now 
unavailable" should be incorrect - a name once available remains so 
(Art. 10.6) unless the Commission has ruled otherwise.
Art. 11.7.1 states that a family-group name must meet the criteria "when 
first published". When the name was established in 1859 the genus-group 
name was not suppressed. Art. 11.7.1.5 does not come into effect here.

Chilodontidae Bronn, 1859 was suppressed, but not ruled to be 
unavailable. The Commission does usually not rule names to be unavailable.

Best wishes
Francisco

Am 18.06.2025 um 01:37 schrieb Tony Rees via Taxacom:
> Dear all,
> 
> Just an update on my 2010(!) thread started at
> https://lists.ku.edu/pipermail/taxacom/2010-April/116226.html
> 
> Recently (2024) ICZN have produced a ruling on this issue (and case
> submitted in 2011), namely (as I understand it):
> 
> - Chilodontidae Eigenmann, 1910 (not 1903 as previously given) in Pisces is
> ruled to be an unjustified emendation (by Fowler, unsure what date) of
> Chilodidae Eigenmann, 1910, not a justified one as previously given, so the
> correct name for this fish family is now Chilodidae (the ICZN ruling
> actually deals with these names at the level of subfamily)
> 
> - Chilodontidae Wenz, 1938 in Mollusca is therefore ruled to be not
> preoccupied, so the proposed replacement name Chilodontaidae (e.g. as used
> in Bouchet et al., 2017) is no longer required (again dealt with at the
> level of subfamily)
> 
> - Chilodontidae Bronn, 1859 (Ciliophora) is now unavailable since its type
> genus, Chilodon Ehrenberg, 1834 is now suppressed for priority (I have that
> as replaced by Chilodonellidae Deroux, 1970. in IRMNG, hopefully that is
> correct).
> 
> I believe the above to be correct although I only have access to the
> abstract, not the full text of the relevant Opinion, which is available at
> https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoi.org%2F10.21805%2Fbzn.v81.a025&data=05%7C02%7Ctaxacom%40lists.ku.edu%7C0733c972d12c431657b408ddadfe95d8%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C638858031151990989%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=UVFAdCzSnmUI1%2BiWCX63KkRzoAhMmDKoziCkDaPfvj0%3D&reserved=0 . I am happy of course to hear any
> additional information or corrections RE my understanding as given above.
> 
> Sometimes the wheels of taxonomy grind more slowly than we might wish, but
> this one got there in the end, it seems...
> 
> Regards to all - Tony
> 
> Tony Rees, New South Wales, Australia
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